This document discusses complex numbers and their properties in Mongolian. It defines the modulus of a complex number a + bi as √(a2 + b2). It provides examples of calculating the modulus of 3 + 2i and 4 - 5i. It then discusses the conjugate of a complex number a - bi. Other topics covered include complex number addition, multiplication, division, powers, and properties of polynomials with complex number coefficients. Worked examples are provided to illustrate these concepts and theorems.
The document discusses partial derivatives and differential calculus for functions of two variables. It provides definitions and formulas for calculating the partial derivative of a function z with respect to t, when x and y are functions of t. It also discusses using the chain rule to calculate the derivative of a composite function z(t). Examples are provided to demonstrate how to apply the formulas to calculate partial derivatives.
The document discusses methods for calculating the area of planar regions bounded by curves in rectangular and polar coordinate systems using definite integrals. For regions bounded by curves in the rectangular system, formulas are provided for calculating the area when the curves have different signs or one curve is above the other. In polar coordinates, the area of a sector bounded by curves is calculated using a definite integral involving the radius function. Examples are worked out applying these methods to find the areas of specific geometric regions.
This document discusses complex numbers and their properties in Mongolian. It defines the modulus of a complex number a + bi as √(a2 + b2). It provides examples of calculating the modulus of 3 + 2i and 4 - 5i. It then discusses the conjugate of a complex number a - bi. Other topics covered include complex number addition, multiplication, division, powers, and properties of polynomials with complex number coefficients. Worked examples are provided to illustrate these concepts and theorems.
The document discusses partial derivatives and differential calculus for functions of two variables. It provides definitions and formulas for calculating the partial derivative of a function z with respect to t, when x and y are functions of t. It also discusses using the chain rule to calculate the derivative of a composite function z(t). Examples are provided to demonstrate how to apply the formulas to calculate partial derivatives.
The document discusses methods for calculating the area of planar regions bounded by curves in rectangular and polar coordinate systems using definite integrals. For regions bounded by curves in the rectangular system, formulas are provided for calculating the area when the curves have different signs or one curve is above the other. In polar coordinates, the area of a sector bounded by curves is calculated using a definite integral involving the radius function. Examples are worked out applying these methods to find the areas of specific geometric regions.