Cuaderno de trabajo derivadas experiencia 1Mariamne3
This document discusses techniques for finding derivatives of basic functions. It covers finding the derivative of constant functions, which is always 0. It also discusses the derivatives of identity functions (f(x)=x), which is 1, power functions (f(x)=xn), which is nxn-1, square root functions (f(x)=√x), which is 1/2√x, and exponential functions (f(x)=ex), which is ex. Examples are provided for each case along with exercises for students to practice finding derivatives of various functions using the appropriate technique.
BTEC HNC Engineering (marine navigational systems eng.)Joseph P. Campbell
A PDF containing scanned images of my HNC Engineering qualification in the field of marine navigational systems engineering (including RADAR; strictly MADAR).
Este documento describe el plano cartesiano y cómo ubicar puntos y calcular perímetros de figuras en él. Explica que el plano cartesiano tiene dos ejes perpendiculares llamados eje x y eje y, y que un par ordenado (x, y) indica la posición de un punto con respecto a cada eje. Luego muestra cómo ubicar varios puntos dados y calcular el perímetro de polígonos conectando los puntos en el plano.
The document discusses composition of functions and the chain rule. It provides examples of finding the composition of various functions f and g, written as f ∘ g(x) = f(g(x)). It also gives examples of using the chain rule to find the derivative of composite functions.
The document discusses conic sections and ellipses. Conic sections are graphs of quadratic equations of the form Ax2 + By2 + Cx + Dy = E, where A and B are not both 0. Their graphs include circles, ellipses, parabolas and hyperbolas. Ellipses are defined as the set of all points where the sum of the distances to two fixed foci is a constant. Ellipses have a center, two axes called the semi-major and semi-minor axes, and radii along the x and y axes called the x-radius and y-radius. The standard form of an ellipse equation is presented.
The document discusses operations that can be performed on functions, including addition, subtraction, multiplication, division, and composition. It provides examples of applying each operation to given functions, such as finding (f+g)(x), (f-g)(x), (f*g)(x), (f/g)(x), and (f ∘ g)(x). It then asks the reader to solve the question: Given h(x)= 2x^2 - 7x and r(x)= x^2 + x - 1, find (h + r)(x). The answer is d: 3x^2 - 6x - 1.
Functions ppt Dr Frost Maths Mixed questionsgcutbill
The document provides an overview of functions topics for GCSE/IGCSE mathematics, including understanding functions, inverse functions, composite functions, domain and range of functions, and piecewise functions. It contains examples of different types of functions and exercises for students to practice evaluating functions, finding inverse functions, and solving word problems involving functions. The document is intended to help students learn and teachers teach key concepts related to functions.
Cuaderno de trabajo derivadas experiencia 1Mariamne3
This document discusses techniques for finding derivatives of basic functions. It covers finding the derivative of constant functions, which is always 0. It also discusses the derivatives of identity functions (f(x)=x), which is 1, power functions (f(x)=xn), which is nxn-1, square root functions (f(x)=√x), which is 1/2√x, and exponential functions (f(x)=ex), which is ex. Examples are provided for each case along with exercises for students to practice finding derivatives of various functions using the appropriate technique.
BTEC HNC Engineering (marine navigational systems eng.)Joseph P. Campbell
A PDF containing scanned images of my HNC Engineering qualification in the field of marine navigational systems engineering (including RADAR; strictly MADAR).
Este documento describe el plano cartesiano y cómo ubicar puntos y calcular perímetros de figuras en él. Explica que el plano cartesiano tiene dos ejes perpendiculares llamados eje x y eje y, y que un par ordenado (x, y) indica la posición de un punto con respecto a cada eje. Luego muestra cómo ubicar varios puntos dados y calcular el perímetro de polígonos conectando los puntos en el plano.
The document discusses composition of functions and the chain rule. It provides examples of finding the composition of various functions f and g, written as f ∘ g(x) = f(g(x)). It also gives examples of using the chain rule to find the derivative of composite functions.
The document discusses conic sections and ellipses. Conic sections are graphs of quadratic equations of the form Ax2 + By2 + Cx + Dy = E, where A and B are not both 0. Their graphs include circles, ellipses, parabolas and hyperbolas. Ellipses are defined as the set of all points where the sum of the distances to two fixed foci is a constant. Ellipses have a center, two axes called the semi-major and semi-minor axes, and radii along the x and y axes called the x-radius and y-radius. The standard form of an ellipse equation is presented.
The document discusses operations that can be performed on functions, including addition, subtraction, multiplication, division, and composition. It provides examples of applying each operation to given functions, such as finding (f+g)(x), (f-g)(x), (f*g)(x), (f/g)(x), and (f ∘ g)(x). It then asks the reader to solve the question: Given h(x)= 2x^2 - 7x and r(x)= x^2 + x - 1, find (h + r)(x). The answer is d: 3x^2 - 6x - 1.
Functions ppt Dr Frost Maths Mixed questionsgcutbill
The document provides an overview of functions topics for GCSE/IGCSE mathematics, including understanding functions, inverse functions, composite functions, domain and range of functions, and piecewise functions. It contains examples of different types of functions and exercises for students to practice evaluating functions, finding inverse functions, and solving word problems involving functions. The document is intended to help students learn and teachers teach key concepts related to functions.
The document provides information about differentiation and finding derivatives of functions:
1) It defines the derivative and introduces basic differentiation rules like the power rule, constant multiple rule, and product rule.
2) Examples are provided to demonstrate applying each rule to find the derivative of various functions like polynomials, quotients, and composite functions.
3) The key steps for using each rule are summarized to help the reader differentiate a wide range of functions.
This document contains exercises to classify different types of differential equations based on their order, degree, linearity, and to determine the independent and unknown functions. It also contains exercises to find the differential equation that a given function satisfies, and to verify if a given function satisfies a given differential equation. The exercises provide the step-by-step workings and solutions.
The document provides an overview of key topics in quadratic equations, including solving quadratic equations by factorizing, completing the square, and using the quadratic formula. It discusses why quadratics are important, such as in modeling projectile motion or summations, and provides examples of solving quadratic equations and completing the square to put them in standard form. The document also includes interactive tests and exercises to help students practice these skills in working with quadratic equations.
1. The document discusses the gamma and beta functions, which are defined in terms of improper definite integrals and belong to the category of special transcendental functions.
2. Several properties and examples involving the gamma and beta functions are provided, including their relationship via the equation β(m,n)= Γ(m)Γ(n)/Γ(m+n).
3. Dirichlet's integral and its extension to calculating areas and volumes are covered. Four examples demonstrating the application of gamma and beta functions are worked out.
B.tech ii unit-2 material beta gamma functionRai University
1. The document discusses the gamma and beta functions, which are defined in terms of improper definite integrals involving exponential and power functions.
2. Examples are provided to demonstrate properties and applications of the gamma function, including evaluating integrals involving the gamma function.
3. The beta function is defined in terms of an integral from 0 to 1, and its relationship to the gamma function is described.
The document provides an overview of functions and their key concepts including:
- Defining a function as a rule that assigns each element of one set (the domain) to an element of another set (the range).
- Describing the domain as the set of inputs and the range as the set of outputs.
- Explaining the vertical line test to determine if a relation is a function based on having a single output for each input.
- Demonstrating operations on functions such as addition, subtraction, multiplication and division through examples.
BSC_COMPUTER _SCIENCE_UNIT-2_DISCRETE MATHEMATICSRai University
This document provides an introduction to definite integration and its applications. It defines indefinite integration as finding the integral or primitive function F(x) of a function f(x). Definite integration involves finding the area under a curve defined by a function f(x) over a specified interval. Standard formulae for integrating common functions like polynomials, trigonometric functions, and exponentials are provided. Methods for integrating functions using substitution and integration by parts are described. Examples of applying these techniques to evaluate definite integrals are also given.
1) The document presents solutions to exercises involving algebraic expressions and polynomials.
2) The exercises include factorizing expressions, performing operations on polynomials, dividing polynomials, solving rational expressions, and determining function domains.
3) The solutions show the step-by-step work and use GeoGebra to verify graphical solutions.
This document discusses special functions and inverse functions. It defines even, odd, increasing, and decreasing functions. It provides examples of each type of special function and theorems about sums, products, and compositions of functions. It also introduces injective functions and defines them as functions where different inputs always produce different outputs. The goal is to recognize different types of functions and understand properties of inverse functions and their applications in mathematics and engineering.
Operaciones entre funciones allows combining functions using arithmetic operations to obtain new functions. Some examples are provided to demonstrate adding, subtracting, multiplying, and dividing functions. Compositing functions is also discussed, where a new function f°g(x) is defined as f(g(x)), replacing all instances of x in f with g(x).
The document provides information about functions including:
1. How to determine if a relation is a function using the vertical line test and examples of functions and non-functions.
2. Explaining the domain, codomain, and range of a function with examples.
3. Discussing composite functions with examples of evaluating composite functions and finding inverse functions.
Ejercicios resueltos de analisis matematico 1tinardo
The document describes the logarithmic differentiation method used to derive functions where the exponent is a variable. It explains the steps: take the natural log of both sides, apply logarithm properties, derive both terms, isolate the function, and substitute back in. Examples are provided and solved, such as deriving y=xx, y=sen(x)(x3+6x), and y=ln x3 + 5x2cos(x). Related activities are summarized with solutions to practice problems applying this method.
The document discusses power series representations of functions. Power series allow functions that cannot be integrated, like ex2, to be approximated by polynomials which can be integrated. This allows integrals to be approximated to any degree of accuracy. Power series also allow irrational numbers like π to be expressed as an infinite decimal expansion. Power series approximations can be used to find approximate solutions to difficult differential equations.
The document discusses several rules for derivatives:
1) The derivative of a sum of functions is the sum of the derivatives of each term.
2) The derivative of a product of functions is the first function times the derivative of the second plus the second function times the derivative of the first.
3) To find critical points, set the derivative equal to 0 and solve for x. Then evaluate the second derivative at those points to determine if they are maxima or minima.
This document provides solutions to problems involving different types of differential equations:
1) Separable differential equations involving solving dy/dx = xy^2 and dy/dx + xey = 0.
2) Homogeneous differential equations involving solving equations with homogeneous coefficients like 2(2x^2 + y^2)dx - xydy = 0.
3) Exact differential equations involving checking if equations like (x + y)dx + (x - y)dy are exact.
4) Linear differential equations involving solving equations like (5x + 3y)dx - xdy = 0.
5) An elementary application involving a tank being rinsed with fresh water flowing in at a rate.
The document discusses functions and evaluating functions. It provides examples of determining if a given equation is a function using the vertical line test and evaluating functions by substituting values into the function equation. It also includes examples of evaluating composite functions using flow diagrams to illustrate the steps of evaluating each individual function.
This document discusses the gamma and beta functions. It defines the gamma function and lists some of its key properties. Examples are provided to demonstrate how to evaluate integrals using gamma function properties. The beta function is then defined and its relationship to the gamma function explained. Dirichlet's integral theorem and its extension to multiple dimensions is covered. Applications to finding volumes and masses are demonstrated. References for further reading on gamma and beta functions are listed at the end.
The document provides 12 examples of taking the derivative of various functions. For each example, it lists the functions, takes the derivatives using appropriate theorems, and states the theorems used. It provides practice and demonstration of finding derivatives using rules for the power, constant, sum, difference and quotient functions.
The document discusses function composition. Function composition involves combining two functions, where the output of the inner function becomes the input of the outer function. The document provides examples of finding the composite function (f ∘ g)(x) given different inner and outer functions f(x) and g(x). It also gives examples of evaluating the composite function at specific values.
The document discusses different types of discontinuities in functions. It defines a discontinuity as occurring when one of the conditions for continuity is not met. There are two main types of discontinuities: removable discontinuities and essential discontinuities. A removable discontinuity occurs when the function value at a point does not equal the limit value at that point, allowing redefinition of the function. An essential discontinuity occurs when the limit does not exist at a point, so the discontinuity cannot be removed. Examples are provided to demonstrate how to identify and classify discontinuities in functions.
En la siguiente presentación se comparten ejemplos en donde se aplica la Regla de la Cadena, específicamente se muestra la derivación de funciones compuestas
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The document provides information about differentiation and finding derivatives of functions:
1) It defines the derivative and introduces basic differentiation rules like the power rule, constant multiple rule, and product rule.
2) Examples are provided to demonstrate applying each rule to find the derivative of various functions like polynomials, quotients, and composite functions.
3) The key steps for using each rule are summarized to help the reader differentiate a wide range of functions.
This document contains exercises to classify different types of differential equations based on their order, degree, linearity, and to determine the independent and unknown functions. It also contains exercises to find the differential equation that a given function satisfies, and to verify if a given function satisfies a given differential equation. The exercises provide the step-by-step workings and solutions.
The document provides an overview of key topics in quadratic equations, including solving quadratic equations by factorizing, completing the square, and using the quadratic formula. It discusses why quadratics are important, such as in modeling projectile motion or summations, and provides examples of solving quadratic equations and completing the square to put them in standard form. The document also includes interactive tests and exercises to help students practice these skills in working with quadratic equations.
1. The document discusses the gamma and beta functions, which are defined in terms of improper definite integrals and belong to the category of special transcendental functions.
2. Several properties and examples involving the gamma and beta functions are provided, including their relationship via the equation β(m,n)= Γ(m)Γ(n)/Γ(m+n).
3. Dirichlet's integral and its extension to calculating areas and volumes are covered. Four examples demonstrating the application of gamma and beta functions are worked out.
B.tech ii unit-2 material beta gamma functionRai University
1. The document discusses the gamma and beta functions, which are defined in terms of improper definite integrals involving exponential and power functions.
2. Examples are provided to demonstrate properties and applications of the gamma function, including evaluating integrals involving the gamma function.
3. The beta function is defined in terms of an integral from 0 to 1, and its relationship to the gamma function is described.
The document provides an overview of functions and their key concepts including:
- Defining a function as a rule that assigns each element of one set (the domain) to an element of another set (the range).
- Describing the domain as the set of inputs and the range as the set of outputs.
- Explaining the vertical line test to determine if a relation is a function based on having a single output for each input.
- Demonstrating operations on functions such as addition, subtraction, multiplication and division through examples.
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This document provides an introduction to definite integration and its applications. It defines indefinite integration as finding the integral or primitive function F(x) of a function f(x). Definite integration involves finding the area under a curve defined by a function f(x) over a specified interval. Standard formulae for integrating common functions like polynomials, trigonometric functions, and exponentials are provided. Methods for integrating functions using substitution and integration by parts are described. Examples of applying these techniques to evaluate definite integrals are also given.
1) The document presents solutions to exercises involving algebraic expressions and polynomials.
2) The exercises include factorizing expressions, performing operations on polynomials, dividing polynomials, solving rational expressions, and determining function domains.
3) The solutions show the step-by-step work and use GeoGebra to verify graphical solutions.
This document discusses special functions and inverse functions. It defines even, odd, increasing, and decreasing functions. It provides examples of each type of special function and theorems about sums, products, and compositions of functions. It also introduces injective functions and defines them as functions where different inputs always produce different outputs. The goal is to recognize different types of functions and understand properties of inverse functions and their applications in mathematics and engineering.
Operaciones entre funciones allows combining functions using arithmetic operations to obtain new functions. Some examples are provided to demonstrate adding, subtracting, multiplying, and dividing functions. Compositing functions is also discussed, where a new function f°g(x) is defined as f(g(x)), replacing all instances of x in f with g(x).
The document provides information about functions including:
1. How to determine if a relation is a function using the vertical line test and examples of functions and non-functions.
2. Explaining the domain, codomain, and range of a function with examples.
3. Discussing composite functions with examples of evaluating composite functions and finding inverse functions.
Ejercicios resueltos de analisis matematico 1tinardo
The document describes the logarithmic differentiation method used to derive functions where the exponent is a variable. It explains the steps: take the natural log of both sides, apply logarithm properties, derive both terms, isolate the function, and substitute back in. Examples are provided and solved, such as deriving y=xx, y=sen(x)(x3+6x), and y=ln x3 + 5x2cos(x). Related activities are summarized with solutions to practice problems applying this method.
The document discusses power series representations of functions. Power series allow functions that cannot be integrated, like ex2, to be approximated by polynomials which can be integrated. This allows integrals to be approximated to any degree of accuracy. Power series also allow irrational numbers like π to be expressed as an infinite decimal expansion. Power series approximations can be used to find approximate solutions to difficult differential equations.
The document discusses several rules for derivatives:
1) The derivative of a sum of functions is the sum of the derivatives of each term.
2) The derivative of a product of functions is the first function times the derivative of the second plus the second function times the derivative of the first.
3) To find critical points, set the derivative equal to 0 and solve for x. Then evaluate the second derivative at those points to determine if they are maxima or minima.
This document provides solutions to problems involving different types of differential equations:
1) Separable differential equations involving solving dy/dx = xy^2 and dy/dx + xey = 0.
2) Homogeneous differential equations involving solving equations with homogeneous coefficients like 2(2x^2 + y^2)dx - xydy = 0.
3) Exact differential equations involving checking if equations like (x + y)dx + (x - y)dy are exact.
4) Linear differential equations involving solving equations like (5x + 3y)dx - xdy = 0.
5) An elementary application involving a tank being rinsed with fresh water flowing in at a rate.
The document discusses functions and evaluating functions. It provides examples of determining if a given equation is a function using the vertical line test and evaluating functions by substituting values into the function equation. It also includes examples of evaluating composite functions using flow diagrams to illustrate the steps of evaluating each individual function.
This document discusses the gamma and beta functions. It defines the gamma function and lists some of its key properties. Examples are provided to demonstrate how to evaluate integrals using gamma function properties. The beta function is then defined and its relationship to the gamma function explained. Dirichlet's integral theorem and its extension to multiple dimensions is covered. Applications to finding volumes and masses are demonstrated. References for further reading on gamma and beta functions are listed at the end.
The document provides 12 examples of taking the derivative of various functions. For each example, it lists the functions, takes the derivatives using appropriate theorems, and states the theorems used. It provides practice and demonstration of finding derivatives using rules for the power, constant, sum, difference and quotient functions.
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3) También introduce conceptos como puntos críticos, máximos y mínimos locales y globales, funciones crecientes y decrecientes, y puntos de inflexión.
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Cuaderno de trabajo en derivadas experiencia 2
1. Universidad Nacional Experimental
Francisco de Miranda
Programa: Ing. Biomédica
Unidad Curricular: Matemática I
𝑦 = 𝑓´(𝑥) + 𝑔´(𝑥)
Prof. Ing. Jocabed Pulido (Esp.)
Coro, septiembre de 2021
EXPERIENCIA 2
2. TÉCNICAS BÁSICAS PARA LA DERIVACIÓN APLICADAS A LAS OPERACIONES CON FUNCIONES
REALES
Debemos tener en cuenta que en Matemática existen cuatro operaciones básicas la suma, la resta,
la multiplicación y la división. Ya hemos aprendido las derivadas de las funciones básicas, ahora en
el Cuaderno de Trabajo Experiencia 2 vamos a estudiar la forma de resolver derivadas cuando
tengamos una suma, una resta, multiplicación y división de funciones.
Caso 6: Derivada una Suma o Resta de Funciones
Si f y g son funciones diferenciables en x, entonces 𝑓 ± 𝑔 también es diferenciable en x y se
cumple lo siguiente:
𝑦 = 𝑓(𝑥) ± 𝑔(𝑥)
𝑦´
= 𝑓´(𝑥) ± 𝑔´(𝑥)
Ejemplo:
Encontrar la derivada de la función 𝑦 = 𝑒𝑥
+ 𝑥3
𝑦´ = (𝑒𝑥)´
+ (𝑥3)´
𝑦´ = 𝑒𝑥
+ 3𝑥2
Ejemplo:
Hallar la derivada de la función 𝑦 = 𝑥5
− 𝑥4
𝑦´ = (𝑥5)´
− (𝑥4)´
𝑦´ = 5𝑥5−1
− 4𝑥4−1
𝑦´ = 4𝑥4
− 4𝑥3
Ejemplo:
Hallar la derivada de la función 𝑦 = 4𝑥2
− 6𝑥 + 1
𝑦´ = 4. (𝑥2)´
− 6. (𝑥)´
+ (1)´
𝑦´ = 4. (2𝑥) − 6. (1) + 0
𝑦´ = 8𝑥 − 6
Fíjate que en este ejemplo
se aplican la derivada de la
función potencia y de la
función exponencial
3. ACTIVIDAD 1
Encuentra la derivada de las funciones que se muestran a continuación en cada caso aprovecha
las ayuda rellena los espacios en blanco y aprende.
𝑓(𝑥) = 𝑥2
+ 2𝑥 + 1
𝑓´(𝑥) = (𝑥2)´
+ (2𝑥)´
+ (1)´
𝑓´(𝑥) =
𝑓(𝑥) = 0,5𝑥4
− 0,3𝑥2
+ 2,5𝑥
𝑓´(𝑥) = (0,5𝑥4)´
− (0,3𝑥2)´
+ (2,5𝑥)´
𝑓´(𝑥) =
𝑓(𝑥) = 𝑒𝑥
+ √𝑥 + √2
𝑓´(𝑥) = (𝑒𝑥)´
+ (√𝑥)
´
+ (√2)
´
𝑓´(𝑥) =
𝑓(𝑥) = 3𝑒𝑥
− 2√𝑥 + 𝑏
𝑓´(𝑥) = (3𝑒𝑥)´
+ (2√𝑥)
´
+ (𝑏)´
𝑓´(𝑥) =
Caso 7: Derivada de un Producto de Funciones
Si f y g son funciones diferenciables en x, entonces f.g también es diferenciable en x y se cumple lo
siguiente
𝑦 = 𝑓(𝑥). 𝑔(𝑥)
𝑦´
= 𝑓´(𝑥). 𝑔(𝑥) + 𝑓(𝑥). 𝑔´(𝑥)
Ejemplo: Derivar 𝑦 = 𝑥. 𝑒𝑥
En todo producto de funciones debemos aplicar la fórmula del Caso 7. Para efectos del ejercicio
𝑓(𝑥) está representada por x y 𝑔(𝑥) está representada por la función exponencial 𝑒𝑥
.
Recomendaciones: La derivada de un producto no es directa como en el caso de la suma te
recomendamos ir paso a paso tal como en el ejemplo y memorizar la siguiente regla de oro
4. Apliquemos la regla de oro a nuestra función: 𝑦´ = (𝑥)´
. 𝑒𝑥
+ 𝑥. (𝑒𝑥)´
Luego debemos resolver las derivadas planteadas, dejando indicadas las que están sin derivar. Es
importante recordar los conocimientos previos adquiridos en el Cuaderno de Trabajo en Derivadas
Experiencia 1 Resolviendo las derivadas planteadas 𝑦´ = (1). 𝑒𝑥
+ 𝑥. (𝑒𝑥) = 𝑒𝑥
+ 𝑥. 𝑒𝑥
Ejemplo: Encuentra la derivada de la función 𝑦 = 𝑥. √𝑥
Aplicando la regla de oro del producto de funciones tenemos
𝑦´ = (𝑥)´
. √𝑥 + 𝑥. (√𝑥)
´
Luego debemos resolver las derivadas planteadas
𝑦´ = (1). √𝑥 + 𝑥.
1
2√𝑥
𝑦´ = √𝑥 + 𝑥.
1
2√𝑥
REGLA DE ORO EN EL PRODUCTO DE FUNCIONES:
La primera función derivada por la segunda sin derivar más la primera función sin
derivar por la segunda función derivada
RECORDATORIO
Si 𝑦 = √𝑥
entonces
𝑦´ =
1
2√𝑥
Ejemplo: Hallar la derivada de la función
𝑓(𝑥) = (𝑥3
+ 1). (𝑥2
− 8)
Aplicamos la regla de oro
𝑦´ = (𝑥3
+ 1)´
. (𝑥2
− 8) + (𝑥3
+ 1). (𝑥2
− 8)´
Luego resolvemos las derivadas
𝑦´ = (3𝑥2
+ 0). (𝑥2
− 8) + (𝑥3
+ 1). (2𝑥 − 0)
Realizamos las sumas o restas correspondientes y
tenemos el resultado final
𝑦´ = 3𝑥2
. (𝑥2
− 8) + (𝑥3
+ 1). 2𝑥
5. ACTIVIDAD 2
Encuentra la derivada de las funciones que se muestran a continuación en cada caso aprovecha
las ayuda rellena los espacios en blanco y aprende.
𝑦 = √𝑥. 𝑒𝑥
𝑦´ = (√𝑥)
´
. 𝑒𝑥
+ √𝑥. (𝑒𝑥)´
𝑦´ =
𝑦 = 𝑥3
. 𝑒𝑥
𝑦´ =
𝑦 = (√𝑥 − 1). (√𝑥 + 1)
𝑦´ = (√𝑥 − 1)
´
. (√𝑥 + 1) + (√𝑥 − 1). (√𝑥 + 1)
´
𝑦´ =
𝑦 = √𝑥. (𝑥2
− 𝑥 + 5)
Caso 8: Derivada de un Cociente de Funciones
Si f y g son diferenciables en x y 𝑔(𝑥) ≠ 0; entonces
𝒇
𝒈
es diferenciable en x y se cumple:
𝑦´
=
𝑓´(𝑥). 𝑔´(𝑥) − 𝑓(𝑥). 𝑔´(𝑥)
(𝑔(𝑥))
2
Ejemplo:
Derivar la función que se muestra a continuación
Aplicando la fórmula del Caso 8 (Derivada de un Cociente) se tiene
𝑦´ =
(2𝑥3
− 1)´
. (𝑥2
+ 3) − (2𝑥3
− 1). (𝑥2
+ 3)´
(𝑥2 + 3)2
𝑦 =
2𝑥3
− 1
𝑥2 + 3
REGLA DE ORO EN EL COCIENTE DE FUNCIONES:
La primera función derivada por la segunda sin derivar MENOS la primera función
sin derivar por la segunda función derivada ENTRE la segunda función al cuadrado
6. 𝑦´ =
6𝑥2
. (𝑥2
+ 3) − (2𝑥3
− 1). 2𝑥
(𝑥2 + 3)2
Ejemplo:
Derivar la función que se muestra a continuación
Aplicando la fórmula del Caso 8 (Derivada de un Cociente) se tiene
𝑦´ =
(𝑎2
+ 𝑥2)´
. (𝑎2
− 𝑥2) − (𝑎2
+ 𝑥2). (𝑎2
− 𝑥2)´
(𝑎2 − 𝑥2)2
Nota: Para efecto de este ejemplo vamos a establecer como criterio que todo lo que no sea x es una
constante por lo que se le aplicara el caso 1.
𝑦´ =
(𝑎2
+ 𝑥2)´
. (𝑎2
− 𝑥2) − (𝑎2
+ 𝑥2). (𝑎2
− 𝑥2)´
(𝑎2 − 𝑥2)2
𝑦´ =
(0 + 2𝑥). (𝑎2
− 𝑥2) − (𝑎2
+ 𝑥2). (0 − 2𝑥)
(𝑎2 − 𝑥2)2
𝑦´ =
2𝑥. (𝑎2
− 𝑥2) − (𝑎2
+ 𝑥2). (−2𝑥)
(𝑎2 − 𝑥2)2
ACTIVIDAD 3
Encuentra la derivada de las funciones que se muestran a continuación en cada caso aprovecha
las ayuda rellena los espacios en blanco y aprende.
𝑦 =
𝑥
𝑥 − 8
𝑦´ =
(𝑥)´
. (𝑥 − 8) − 𝑥. (𝑥 − 8)´
(𝑥 − 8)2
𝑦´ =
𝑦 =
𝑒𝑥
− 1
𝑒𝑥 + 1
𝑦´ =
(𝑒𝑥
− 1)´
. (𝑒𝑥
+ 1) − (𝑒𝑥
− 1). (𝑒𝑥
+ 1)´
(𝑒𝑥 + 1)2
=
𝑦 =
𝑎2
+ 𝑥2
𝑎2 − 𝑥2
7. EJERCICIOS PROPUESTOS
PARTE I: DESARROLLO
Encuentra las derivadas de las funciones que se presentan a continuación:
1) 𝑦 = 2𝑥 + √𝑥 − √2
2) 𝑦 = 𝑥3
− 4𝑥 + 5
3)𝑦 = (5𝑥4
− 4𝑥5). (3𝑥2
+ 2𝑥3)
4)𝑦 = 𝑥
1
3. 𝑒𝑥
5)𝑦 = (5𝑥4
− 4𝑥5). (3𝑥2
+ 2𝑥3)
6)𝑦 = 𝑥. (𝑥2
− 𝑥 + 5)
7)𝑦 =
5𝑥
(1 + 2𝑥2)
8)𝑦 =
𝑒𝑥
1 + 𝑥2
9)𝑦 =
1 − √𝑥
1 + 2√𝑥
10)𝑦 =
𝑥2
+ 1
𝑥2 − 1
− (𝑥 − 1). (𝑥2
+ 1)
PARTE II: APRENDIZAJE DE LA EXPERIENCIA
1.El ejercicio N°6 𝑦 = 𝑥. (𝑥2
− 𝑥 + 5) es muy sencillo pero tiene dos maneras de realizarse y en
ambas el resultado de la derivada es el mismo realizando las simplificaciones respectivas.
Indica los procedimientos a seguir en ambos casos y el resultado de la derivada de la función.
2. En el ejercicio N°10 𝑦 =
𝑥2+1
𝑥2−1
− (𝑥 − 1). (𝑥2
+ 1) debes aplicar tanto la derivada de un producto
como la derivada de un cociente de funciones. Piensa en alguna simplificación que te pudiera hacer
más fácil el cálculo de la derivada.