Math mcqs of unit 2

03.15 4:16 pm
MOHAMMED IMTIAZ ALI ARISAR

STUDY NOTES
SUBJECT MATH

MATRICES
ETERMINANTS

MCQS

1:
Two matrices A and B are said to be equal if:
a) only their order are same.
b) only their elements are same.
c) their order and elements are same.
d) none of these.
Ans c.
2:
What is square matrix?
a) number of rows and columns are not equal.
b) number of rows and columns are equal.
c) number of rows and columns are zero.
d) only have one column.
Ans b.
3:
What is null matrix?
a) in which every element is same.
b) in which every element is zero.
c) number of rows are not equal to number of columns.
d) 3x3 matrix.
Ans b.
4:
Transpose of matrix A is called:
a) interchanging matrix A rows and columns.
b) multiply matrix A rows by columns.
c) subtract rows from columns.
d) none of these.
Ans a.
5:
A matrix A is said to be symmetric if:
a) transpose of A =–A.
b)A=[0].
c) transpose of A = A.
d) A is equal to unit matrix.
Ans c
6:
A square is equal to A:
a) nilpotent matrix.
b) involutory matrix.
c) periodic matrix.
d) idempotent matrix.
Ans d.
7:
transpose of (Ā)= –A:
a) hermitian matrix.
b) nilpotent matrix.
c) skew hermitian matrix.
d) none of these.