The document provides instructions for a mathematics scholarship test consisting of 30 questions across three sections: Algebra, Analysis, and Geometry. It outlines the structure and time limit of the test, how to answer questions, notations that will be used, and clarifies that calculators are not allowed. The key at the end provides the answers to sample questions asked in each section to illustrate the nature and difficulty of the test.
Jr imp, Maths IB Important, Mathematics IB, Mathematics, Jr. Maths, Mathematics AP board, Mathematics important, Maths AP Board, Inter Maths IB, Inter Maths IB Important.
This learner's module discusses or talks about the topic of Quadratic Functions. It also discusses what is Quadratic Functions. It also shows how to transform or rewrite the equation f(x)=ax2 + bx + c to f(x)= a(x-h)2 + k. It will also show the different characteristics of Quadratic Functions.
Imagery & Imagination: Storytelling Through Social MediaJon O'Brien
Imagine Pittsburgh, the Green Building Alliance and the Master Builders' Association united for this social media program on how to effectively promote your company through images and videos. A panel of experts discussed tools, best practices and opportunities.
Jr imp, Maths IB Important, Mathematics IB, Mathematics, Jr. Maths, Mathematics AP board, Mathematics important, Maths AP Board, Inter Maths IB, Inter Maths IB Important.
This learner's module discusses or talks about the topic of Quadratic Functions. It also discusses what is Quadratic Functions. It also shows how to transform or rewrite the equation f(x)=ax2 + bx + c to f(x)= a(x-h)2 + k. It will also show the different characteristics of Quadratic Functions.
Imagery & Imagination: Storytelling Through Social MediaJon O'Brien
Imagine Pittsburgh, the Green Building Alliance and the Master Builders' Association united for this social media program on how to effectively promote your company through images and videos. A panel of experts discussed tools, best practices and opportunities.
Красочная и аккуратная презентация продукта облачный call-center. В основе лежат аккуратные иллюстрации, которые позволяют воспринимать вербальный ряд и добавляют эмоционального компонента в презентацию.
Никита Булатов — иллюстратор
Ян Болдырев — Арт-Директор
Анастасия Сотникова — верстка
Дмитрий Карнаухов — координация проекта.
IIT JAM MATH 2021 Question Paper | Sourav Sir's ClassesSOURAV DAS
IIT JAM Math Previous Year Question Paper
IIT JAM Math 2021 Question Paper
IIT JAM Preparation Strategy
For any query about exams feel free to contact us
Call - 9836793076
This is the entrance exam paper for ISI MSQE Entrance Exam for the year 2008. Much more information on the ISI MSQE Entrance Exam and ISI MSQE Entrance preparation help available on http://crackdse.com
FINAL PROJECT, MATH 251, FALL 2015[The project is Due Mond.docxvoversbyobersby
FINAL PROJECT, MATH 251, FALL 2015
[The project is Due Monday after the thanks giving recess]
.NAME(PRINT).________________ SHOW ALL WORK. Explain and
SKETCH (everywhere anytime and especially as you try to comprehend the prob-
lems below) whenever possible and/or necessary. Please carefully recheck your
answers. Leave reasonable space between lines on your solution sheets. Number
them and print your name.
Please sign the following. I hereby affirm that all the work in this project was
done by myself ______________________.
1) i) Explain how to derive the representation of the Cartesian coordinates x,y,z
in terms of the spherical coordinates ρ, θ, φ to obtain
(0.1) r =< x = ρsin(φ)cos(θ), y = ρsin(φ)sin(θ), z = ρcos(φ) > .
What are the conventional ranges of ρ, θ, φ?
ii) Conversely, explain how to express ρ, sin(θ), cos(θ), cos(φ), sin(φ) as
functions of x,y,z.
iii) Consider the spherical coordinates ρ,θ, φ. Sketch and describe in your own
words the set of all points x,y,z in x,y,z space such that:
a) 0 ≤ ρ ≤ 1, 0 ≤ θ < 2π, 0 ≤ φ ≤ π b) ρ = 1, 0 ≤ θ < 2π, 0 ≤ φ ≤ π,
c) 0 ≤ ρ < ∞, 0 ≤ θ < 2π, φ = π
4
, d) ρ = 1, 0 ≤ θ < 2π, φ = π
4
,
e) ρ = 1, θ = π
4
, 0 ≤ φ ≤ π. f) 1 ≤ ρ ≤ 2, 0 ≤ θ < 2π, π
6
≤ φ ≤ π
3
.
iv) In a different set of Cartesian Coordinates ρ, θ, φ sketch and describe in your
own words the set of points (ρ, θ, φ) given above in each item a) to f). For example
the set in a) in x,y,z space is a ball with radius 1 and center (0,0,0). However, in
the Cartesian coordinates ρ, θ, φ the set in a) is a rectangular box.
2) [Computation and graphing of vector fields]. Given r =< x,y,z > and the
vector Field
(0.2) F(x,y,z) = F(r) =< 1 + z,yx,y >,
1
FINAL PROJECT, MATH 251, FALL 2015 2
i) Draw the arrows emanating from (x,y,z) and representing the vectors F(r) =
F(x,y,z) . First draw a 2 raw table recording F(r) versus (x,y,z) for the 4 points
(±1,±2,1) . Afterwards draw the arrows.
ii) Show that the curve
(0.3) r(t) =< x = 2cos(t), y = 4sin(t), z ≡ 0 >, 0 ≤ t < 2π,
is an ellipse. Draw the arrows emanating from (x(t),y(t),z(t)) and representing
the vector values of dr(t)
dt
, F(r(t)) = F(x(t),y(t),z(t)) . Let θ(t) be the angle
between the arrows representing dr(t)
dt
and F(r(t)) . First draw a 5 raw table
recording t, (x(t),y(t),z(t)), dr(t)
dt
, F(r(t)), cos(θ(t)) for the points (x(t),y(t),z(t))
corresponding to t = 0,π
4
, 3π
4
, 5π
4
, 7π
4
. Then draw the arrows.
iii) Given the surface
r(θ,φ) =< x = 2sin(φ)cos(θ), y = 2sin(φ)sin(θ), z = 2cos(φ) >,0 ≤ θ < 2π, 0 ≤ φ ≤ π,
in parametric form. Use trigonometric formulas to show that the following iden-
tity holds
x2(θ,φ) + y2(θ,φ) + z2(θ,φ) ≡ 22.
iv) Draw the arrows emanating from (x(θ,φ),y(θ,φ),z(θ,φ)) and representing the
vectors ∂r(θ,φ)
∂θ
× ∂r(θ,φ)
∂φ
, F(r(θ,φ)) = F(x(θ,φ),y(θ,φ),z(θ,φ)) . Let α(θ,φ) be
the angle between the arrows representing ∂r(θ,φ)
∂θ
× ∂r(θ,φ)
∂φ
and F(r(θ,φ)) . First
draw a table with raws and columns recording (θ,φ),(x(θ,φ),y ...
enjoy the formulas and use it with convidence and make your PT3 AND SPM more easier..togrther we achieve the better:)
good luck guys and girls...simple and short ans also sweet formulas..
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Nbhm m. a. and m.sc. scholarship test 2012 with answer key
1. NATIONAL BOARD FOR HIGHER MATHEMATICS
M. A. and M.Sc. Scholarship Test
September 22, 2012
Time Allowed: 150 Minutes
Maximum Marks: 30
Please read, carefully, the instructions on the following page
1
2. INSTRUCTIONS TO CANDIDATES
• Please ensure that this question paper booklet contains 7 numbered
(and printed) pages. The reverse of each printed page is blank and can
be used for rough work.
• There are three parts to this test: Algebra, Analysis and Geometry.
Each part consists of 10 questions adding up to 30 questions in all.
• Answer each question, as directed, in the space provided for it in the
answer booklet, which is being supplied separately. This question
paper is meant to be retained by you and so do not answer questions
on it.
• In certain questions you are required to pick out the qualifying state-
ment(s) from multiple choices. None of the statements, or one or more
than one statement may qualify. Write none if none of the statements
qualify, or list the labels of all the qualifying statements (amongst
(a),(b) and (c)).
• Points will be awarded in the above questions only if all the correct
choices are made. There will be no partial credit.
• N denotes the set of natural numbers, Z - the integers, Q - the ratio-
nals, R - the reals and C - the field of complex numbers. Rn
denotes
the n-dimensional Euclidean space.
The symbol ]a, b[ will stand for the open interval {x ∈ R | a < x < b}
while [a, b] will stand for the corresponding closed interval; [a, b[ and
]a, b] will stand for the corresponding left-closed-right-open and left-
open-right-closed intervals respectively.
The symbol I will denote the identity matrix of appropriate order.
We denote by Mn(R) (respectively, Mn(C)), the set of all n×n matrices
with entries from R (respectively, C).
We denote by GLn(R) (respectively, GLn(C)) the group (under matrix
multiplication) of invertible n × n matrices with entries from R (re-
spectively, C) and by SLn(R) (respectively, SLn(C)), the subgroup of
matrices with determinant equal to unity. The trace of a square matrix
A will be denoted tr(A) and the determinant by det(A).
The derivative of a function f will be denoted by f .
All logarithms, unless specified otherwise, are to the base e.
• Calculators are not allowed.
2
3. Section 1: Algebra
1.1 Solve the following equation, given that its roots are in arithmetic pro-
gression.
x3
− 6x2
+ 13x − 10 = 0.
1.2 Evaluate: n
k=1
k
n
n
k
tk
(1 − t)n−k
where
n
k
stands for the usual binomial coefficient giving the number of
ways of choosing k objects from n objects.
1.3 Which of the following form a group under matrix multiplication?
a.
a a
a a
: a = 0, a ∈ R .
b.
a b
−b a
: |a| + |b| = 0, a, b ∈ R .
c.
cos θ sin θ
− sin θ cos θ
: θ ∈ [0, 2π[ .
1.4 In each of the following, state whether the given set is a normal subgroup
or, is a subgroup which is not normal or, is not a subgroup of GLn(C).
a. The set of matrices with determinant equal to unity.
b. The set of invertible upper triangular matrices.
c. The set of invertible matrices whose trace is zero.
1.5 Let S5 denote the symmetric group of all permutations of the five sym-
bols {1, 2, 3, 4, 5}. What is the highest possible order of an element in this
group?
1.6 On R2
, consider the linear transformation which maps the point (x, y)
to the point (2x + y, x − 2y). Write down the matrix of this transformation
with respect to the basis
{(1, 1), (1, −1)}.
1.7 Let V be the subspace of M2(R) consisting of matrices such that the
entries of the first row add up to zero. Write down a basis for V .
1.8 Let A ∈ M2(R) such that tr(A) = 2 and det(A) = 3. Write down the
characteristic polynomial of A−1
.
3
4. 1.9 A non-zero matrix A ∈ Mn(R) is said to be nilpotent if Ak
= 0 for some
positive integer k ≥ 2. If A is nilpotent, which of the following statements
are true?
a. Necessarily, k ≤ n for the smallest such k.
b. The matrix I + A is invertible.
c. All the eigenvalues of A are zero.
1.10 Write down a necessary and sufficient condition, in terms of a, b, c and
d (which are assumed to be real numbers), for the matrix
a b
c d
not to have a real eigenvalue.
4
5. Section 2: Analysis
2.1 Let {xn}∞
n=1 be a sequence of real numbers. Pick out the cases which
imply that the sequence is Cauchy.
a. |xn − xn+1| ≤ 1/n for all n.
b. |xn − xn+1| ≤ 1/n2
for all n.
c. |xn − xn+1| ≤ 1/2n
for all n.
2.2 Pick out the convergent series.
a. ∞
n=1
(n3
+ 1)
1
3 − n .
b. ∞
n=1
(n + 1)n
nn+3
2
.
c. ∞
n=1
1
n1+ 1
n
.
2.3 List the sets of points of discontinuity, if any, for the following functions.
a. f : [−1, 1] → R defined by
f(x) =
1 if x is irrational,
0 if x is rational.
b. f : [−1, 1] → R defined by
f(x) =
x if x is irrational,
0 if x is rational.
c. f : [0, ∞[→ R defined by
f(x) =
(x) if [x] is even,
1 − (x) if [x] is odd
where [x] is the largest integer less than, or equal to x and (x) = x − [x].
2.4 Let {fn} be a sequence of functions defined on [0, 1]. Determine f(x) =
limn→∞ fn(x), for each of the following.
a. fn(x) = n2
x(1 − x2
)n
.
b. fn(x) = nx(1 − x2
)n
.
c. fn(x) = x(1 − x2
)n
.
2.5 For each of the cases (a), (b) and (c) of Question 2.4 above, determine
if the following claim is true or false:
lim
n→∞
1
0
fn(x) dx =
1
0
f(x) dx.
5
6. 2.6 Pick out the true statements:
a. | sin x − sin y| ≤ |x − y| for all x, y ∈ R.
b. | sin 2x − sin 2y| ≤ |x − y| for all x, y ∈ R.
c. | sin2
x − sin2
y| ≤ |x − y| for all x, y ∈ R.
2.7 Let x > 0. Fill in the blanks with the correct sign >, ≥, < or ≤:
a.
tan−1
x . . . . . .
x
1 + x2
.
b.
log(1 + x) . . . . . .
x
1 + x
.
2.8 Write down explicitly the expression for the n-th derivative of the func-
tion f(x) = x2
e3x
.
2.9 Find all the square roots of the complex number 2i.
2.10 Determine the points where f (z) exists and write down its value at
those points in the following cases:
a. f(z) = y(x + iy)
b. f(z) = x2
+ iy2
where z = x + iy, x, y ∈ R.
6
7. Section 3: Geometry
3.1 Find the area of the pentagon whose vertices are the fifth roots of unity
in the complex plane.
3.2 Let a, b ∈ R. If P is the point in the plane whose coordinates are (x, y),
define f(P) = ax + by.Let the line segment AB bisect the line segment CD.
If f(A) = 5, f(B) = 5 and f(C) = 10, find f(D).
3.3 Which of the following sets are bounded in the plane R2
?
a. {(x, y) : 2x2
+ 2xy + 2y2
= 1}.
b. {(x, y) : xy = 1}.
c. {(x, y) : y ≥ 0, |x| =
√
y}.
3.4 Which of the sets described in Question 3.3 above are made up of two
(or more) disjoint connected components?
3.5 Let x1 > 0 and y1 > 0. If the portion of a line intercepted between the
coordinate axes is bisected at the point (x1, y1), write down the equation of
the line.
3.6 Find λ such that the equation
x2
+ 5xy + 4y2
+ 3x + 2y + λ = 0
represents a pair of straight lines.
3.7 Write down the condition that the plane x + my + nz = p is tangent to
the sphere x2
+ y2
+ z2
= r2
.
3.8 Write down the equation of the plane parallel to 4x + 2y − 7z + 6 = 0
which passes through the point (2, −4, 5).
3.9 Write down the equation of the normal to the parabola y2
= 4ax at the
point (at2
, 2at).
3.10 A plane moves so that its distance from the origin is a constant p. Write
down the equation of the locus of the centroid of the triangle formed by its
intersection with the three coordinate planes.
7
8. KEY
Section 1: Algebra
1.1 2, 2 ± i
1.2 t
1.3 a,b,c
1.4 a. normal subgroup; b. subgroup, but
not normal; c. not a subgroup
1.5 6
1.6
1 2
2 −1
.
1.7 Any three linearly independent matrices
with the entries of the first row adding up to
zero
1.8 λ2
− 2
3
λ + 1
3
1.9 a,b,c
1.10 (a + d)2
< 4(ad − bc)
Section 2: Analysis
2.1 b,c
2.2 a,b
2.3 a. [−1, 1]; b. [−1, 1]{0}; c. ∅
2.4 f(x) = 0 for all cases a,b,c
2.5 a. false; b. false; c. true
2.6 a,c
2.7 a. >; b. >
2.8 3n−2
e3x
[9x2
+ 6nx + n(n − 1)]
2.9 ±(1 + i)
2.10 a. f (0) = 0; b. f (x + ix) = 2x
Section 3: Geometry
3.1 5
2
sin 2π
5
3.2 f(D) = 0
3.3 a
3.4 b
3.5 x
x1
+ y
y1
= 2
3.6 λ = −10/9
3.7 p2
= r2
(l2
+ m2
+ n2
)
3.8 4x + 2y − 7z + 35 = 0
3.9 y + tx = 2at + at3
3.10 1
x2 + 1
y2 + 1
z2 = 9
p2
Note: Please accept any answer which is cor-
rect, but expressed in an equivalent, though
different, form, where applicable.
1