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Recent questions and answers in Linear Algebra
0
votes
0
answers
Gate ME 2020.
For the matrix 1 1 0 1 2 1 0 1 1 $\begin{bmatrix} 1 &1 &0 \\ 1& 2 &1 \\ 0 &1 &1 \end{bmatrix}$ has eigen vector ? (A) 1 1 1 (B) 1 1 1 (C) 1 1 1 (D) 1 1 1
asked
Feb 6
in
Linear Algebra
by
Priyansh Singh
(
257
points)

42
views
#linearalgebra
0
votes
0
answers
Gate ME 2020
Multiplication of real valued square matrices of same dimension is : (A)Commutative (B)Associative (C)Always positive definite (D)Not always possible to compute
asked
Feb 6
in
Linear Algebra
by
Priyansh Singh
(
257
points)

28
views
#linearalgebra
+1
vote
1
answer
Virtual GATEFLT
How do we identity or inverse element here?Is option B) correct?
answered
Feb 4
in
Linear Algebra
by
shashin
(
1.9k
points)

32
views
discrete_maths
0
votes
0
answers
GATE GURU: C PROGRAMMING
#include<stdio.h> int rec(int n) { static int num=5; if (n<=0) return 10; if (n>3) { num=50; return (num + rec(n1)); } return (num  rec(n1)); } int main() { printf("%d",rec(8)); } $What$ $is$ $the$ $output$ $of$ $the$ $following$ $code?$ $and$ $WHY?$
asked
Feb 1
in
Linear Algebra
by
Debapaul
(
698
points)

28
views
cprogrammingforgate
+1
vote
1
answer
madeeasy test series math problem
not getting how to solve it …...
answered
Feb 1
in
Linear Algebra
by
Debdeep1998
(
104
points)

40
views
0
votes
0
answers
Applied course test series : Linear algebra
Can someone explain statement II ?
asked
Jan 22
in
Linear Algebra
by
vishal burnwal
(
135
points)

36
views
linearalgebra
0
votes
2
answers
SELF DOUBT: PREVIOUS GO
answered
Jan 17
in
Linear Algebra
by
SuvasishDutta
(
208
points)

37
views
0
votes
0
answers
MATHS PREVIOUS YEAR SELF DOUBT
https://gateoverflow.in/118618/gate2017252 SUPPOSE THE EIGEN VALUES AFTER SOLVING WOULD BE 2,6,4 then the largest among the absolute values of the eigenvalues of MM is _______? WILL THE ANSWER BE 6 BECAUSE LARGEST OF ABSOLUTE OF EIGEN VALUE IS 6 ? AM I DOING RIGHT?
asked
Jan 14
in
Linear Algebra
by
eyeamgj
(
40
points)

9
views
0
votes
0
answers
ISRO 2007 qno. 9
Can some one please provide the solution to the problem given in the link: https://gateoverflow.in/49479/isro200709 Thank you
asked
Jan 11
in
Linear Algebra
by
Pratyush Priyam Kuan
(
802
points)

13
views
#isro
#exam
#engineeringmaths
linearalgebra
eigenvector
0
votes
1
answer
Eigen vector self doubt
How are they getting [0,1,0] From the first row I’m getting x1=0 so x1=0 from the 2nd row x3=0 from 3rd row 2x1+x3=0 2x1=0 since x3=0 so x1=0 Where did i go wrong
answered
Jan 5
in
Linear Algebra
by
shashin
(
1.9k
points)

11
views
0
votes
1
answer
Maths Matrices
For the following set of simultaneous equations 1.5x – 0.5y +z =2 4x + 2y + 3z =9 7x + y +5z =10 The solution is unique infinitely many solutions exist the equations are incompatible finite many solutions exist Anyone please clarify.
answered
Jan 1
in
Linear Algebra
by
pranay562
(
926
points)

22
views
discrete_maths
engineeringmaths
discretemaths
0
votes
0
answers
ACE Practice Mock 2 Q22
can someone please explain to me how to find the no of independent eigenvectors?
asked
Dec 29, 2019
in
Linear Algebra
by
Khushboosahuu
(
6
points)

20
views
#gatepreparation
aceacademytestseries
#testseries
0
votes
0
answers
MadeEasy FULL SYLLABUS TEST1 (BASIC LEVEL) GATE 2020 Q49
asked
Dec 29, 2019
in
Linear Algebra
by
DukeThunders
(
415
points)

33
views
0
votes
0
answers
Ace Academy Full length Mock test 3 Q17
asked
Dec 21, 2019
in
Linear Algebra
by
ssap09
(
42
points)

10
views
aceacademytestseries
#gatepreparation
engineeringmathematics
linearalgebra
eigenvalue
0
votes
1
answer
Ace Practice questions Linear Algebra
If ‘A’ is a non singular matrix and $(IA+A^{2}.....+(1)^{n}A^{n})=0$ then $A^{1}$ = _______________
answered
Dec 13, 2019
in
Linear Algebra
by
amit166
(
138
points)

14
views
linearalgebra
engineeringmathematics
0
votes
0
answers
ACE Mock Test Sets
Question: One quarter of 5 element subsets of {1,2,3,4,….n} contain 7, then n = ? My answer: $\frac{C(n1,4)}{C(n,5)} = \frac{1}{4} \Rightarrow n = 20$ Given answer: $\frac{C(n,4)}{C(n,5)} = \frac{1}{4} \Rightarrow n = 24$ I think I am correct because once we consider 7 as an element we can choose only 4 remaining elements, but can you please confirm the same?
asked
Dec 5, 2019
in
Linear Algebra
by
tamaldeepmaity
(
17
points)

7
views
engineeringmathematics
settheory
0
votes
0
answers
#math test questions
solve this
asked
Dec 5, 2019
in
Linear Algebra
by
amit166
(
138
points)

5
views
eigenvector
0
votes
0
answers
#doubt in linear algebra
# Eigenvectors of real symmetric matrices are orthogonal .
asked
Dec 5, 2019
in
Linear Algebra
by
amit166
(
138
points)

5
views
linearalgebra
0
votes
0
answers
MOCK TESTS GATEFORUM
The matrix A has (1, 2, 1)^T and (1, 1, 0)^T as eigenvectors, both with eigenvalue 7, and its trace is 2. The determinant of A is __________ . (A) 84 (B) 588 (C) 49 (D) None of these
asked
Dec 3, 2019
in
Linear Algebra
by
Dipanshu Rana
(
34
points)

5
views
0
votes
1
answer
GATE GURU:LINEAR ALGEBRA
answered
Nov 14, 2019
in
Linear Algebra
by
Verma Ashish
(
386
points)

32
views
linearalgebra
0
votes
1
answer
GATE GURU: LA
How to approach these kind of sums? A9 means $A^9$
answered
Nov 10, 2019
in
Linear Algebra
by
Satbir
(
4.1k
points)

27
views
engineeringmaths
0
votes
0
answers
Gate 2014 IN
A scalar valued function is defined as $F(X)=X^{T}AX+B^{T}X+C$ where A is symmetric positive definite matrix with dimension n*n; B and X are vector of dimension n *1.the minimum value of f(X) will occur when X Equal.
asked
Nov 10, 2019
in
Linear Algebra
by
amit166
(
138
points)

8
views
linearalgebra
0
votes
0
answers
Gate 2014 EE
$A=\begin{bmatrix} & 0 &1&1& \\ & 6&11&6& \\ & 6&11&5 & \end{bmatrix}$ The absolute value of the ratio of the maximum eigenvalue to the minimum eigenvalue is
asked
Nov 10, 2019
in
Linear Algebra
by
amit166
(
138
points)

14
views
eigenvalue
value
0
votes
0
answers
ACE Test Series: Matrix
If $Adj$ $A=\begin{bmatrix} 18 &11&10 \\ 2 & 14 &4 \\ 4 & 5 & 8 \end{bmatrix}$, then absolute value of determinant of $A$ is __________
asked
Nov 10, 2019
in
Linear Algebra
by
srestha
(
679
points)

17
views
engineeringmaths
0
votes
0
answers
Gate 98 CE questions
The real symmetric matrix C corresponding to the quadratic form $Q=x_{1}x_{2}5x_{2}x_{2}$ is
asked
Nov 9, 2019
in
Linear Algebra
by
amit166
(
138
points)

8
views
symmetric
0
votes
0
answers
homogeneous linear equation doubt
I have a doubt it may be simple but I am not able to understand . so, please help In homogeneous linear equation if r is the rank of the matrix. We know that row rank=column rank=rank of the matrix. My doubt is here the number of ... so number of independent variable is r .so how is the number of independent solutions is nr. Please someone clear this doubt .
asked
Nov 1, 2019
in
Linear Algebra
by
Pratyush Priyam Kuan
(
802
points)

19
views
linearalgebra
engineeringmathematics
0
votes
1
answer
GRADE UP: FREE test
answered
Oct 22, 2019
in
Linear Algebra
by
Verma Ashish
(
386
points)

28
views
0
votes
1
answer
GATE GURU TEST SERIES: LINEAR ALGEBRA
answered
Oct 21, 2019
in
Linear Algebra
by
Satbir
(
4.1k
points)

37
views
linearalgebra
0
votes
1
answer
MADE EASY: LINEAR ALGEBRA
answered
Oct 21, 2019
in
Linear Algebra
by
GAITONDE
(
1.7k
points)

18
views
linearalgebra
0
votes
0
answers
Testbook Test series: Linear algebra
Let M be a 3 x 3 matrix such that M$\begin{pmatrix} 2\\ 1\\ 0 \end{pmatrix}$=$\begin{pmatrix} 6\\ 3\\ 0 \end{pmatrix}$ and suppose that $M^{3}$\begin{pmatrix} 1\\ 1/2\\ 0 \end{pmatrix}$=$\begin{pmatrix} \alpha\\ \beta\\ \gamma\\ \end{pmatrix}$ for some $\alpha$,$\beta$,$\gamma$ $\epsilon$ R. Then $\alpha$ is equal to:
asked
Oct 16, 2019
in
Linear Algebra
by
Kushagra गुप्ता
(
176
points)

33
views
linearalgebra
engineeringmathematics
0
votes
1
answer
Gate 2007  IN
$\\ A\ is\ n*n \ matrix \ such \ that \ A^2=I \ and B \ is \ n*1 \ real \ \\vector \ then \ Ax=B \ has \\ \\ a) no \ solution \\ b) unique \ solution\\ c) infinitely \ many \ solution\\ d) none$
answered
Sep 23, 2019
in
Linear Algebra
by
aditi19
(
55
points)

12
views
engineeringmathematics
linearalgebra
0
votes
2
answers
Nullity of a matrix
Answer is given as 1. Please show the solution. Thank you.
answered
Sep 23, 2019
in
Linear Algebra
by
aditi19
(
55
points)

17
views
0
votes
0
answers
Self doubt in matrices.
A hermitian matrix can be similar to a non hermitian matrix . (True or false)?
asked
Sep 17, 2019
in
Linear Algebra
by
Eleph knaught
(
7
points)

15
views
linearalgebra
0
votes
0
answers
CSIR / UGC NET  Linear Algebra
Let A be a 3x3 real matrix. Suppose 1 and 1 are two of the three Eigen values of A and 18 is one of the Eigen values of $A^2 + 3A$. Then. a) Both A and $A^2 + 3A$ are invertible b) $A^2 + 3A$ is invertible but A is not c) A is invertible but $A^2 + 3A$ is not d) Both A and $A^2 + 3A$ are not invertible
[closed]
asked
Sep 11, 2019
in
Linear Algebra
by
Kushagra गुप्ता
(
176
points)

7
views
engineeringmathematics
linearalgebra
ugcnet
0
votes
0
answers
Linear algebra by Fuzhen Zhang
Find the value of $t$ for which the following matrix has rank $3$. $\begin{pmatrix} t & 1& 1& 1 \\ 1 & t & 1& 1 \\ 1 & 1 & t & 1 \\ 1 & 1 & 1 & t \end{pmatrix}$
asked
Sep 7, 2019
in
Linear Algebra
by
Eleph knaught
(
7
points)

18
views
linearalgebra
0
votes
2
answers
Please suggest how many nd wht topic to study in group theory for gate?
answered
Aug 28, 2019
in
Linear Algebra
by
Bikram
(
1.2k
points)

21
views
0
votes
0
answers
Eigen Value of Symmetric Matrix vs Real Symmetric Matrix
asked
Aug 19, 2019
in
Linear Algebra
by
nadeshseen
(
43
points)

12
views
vectorspaces
engineeringmaths
0
votes
1
answer
number of linearly independent eigen vectors
The number of linearly independent eigen vectors of $\begin{pmatrix} 2 & 1\\ 0 & 2 \end{pmatrix}$ The answer is 1. Please show the solution. Thank you.
answered
Aug 11, 2019
in
Linear Algebra
by
Satbir
(
4.1k
points)

14
views
0
votes
0
answers
Group theory  order of non abelian
Let G be a non abelian group, order of G can be 24 44 54 34 Can someone explain ?
asked
Aug 8, 2019
in
Linear Algebra
by
user2525
(
1.6k
points)

9
views
discrete_maths
#group
0
votes
0
answers
#madeeasy testseries
Caption
asked
Jul 20, 2019
in
Linear Algebra
by
Pradeep Verma
(
10
points)

10
views
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