### MCQs of Matrices

Showing 1 to 10 out of 92 Questions
1.
 (a) 3 (b) 6 (c) 9 (d) 27
2.

If A = [aij]n × n such that aij = 0 for i ≠ j then A is _____ (aij  ≠ ajj ) (n > 1)

 (a) a column matrix (b) a row matrix (c) a diagonal matrix (d) a scalar matrix
3.
 (a) (b) (c) (d) A is a diagonal matrix
4.

A is 3 × 4 matrix, if ATB and BAT are defined then, B is a _____ matrix.

 (a) 4 × 3 (b) 3 × 3 (c) 4 × 4 (d) 3 × 4
5.

If A is skew-symmetric 3 × 3 matrix, |A| = _____ .

 (a) 1 (b) 0 (c) -1 (d) 3
6.
The system of equations ax + y + z = a – 1, x + ay + z = a – 1 and x + y + az + a – 1 does not have unique solution if a = _____.
 (a) 1 (b) 3 (c) 2 (d) -1
7.
 (a) x = a2 + b2 , y = a2 - b2 (b) x = 2ab, y = a2 + b2 (c) x = a2 + b2 , y = ab (d) x = a2 + b2 , y = 2ab
8.
The solution set of x - 2y = 4 and -3x + 5y = - 7 is _____ .
 (a) {(6,5)} (b) {(-6,-5)} (c) {(6,-5)} (d) {(-6,5)}
9.
 (a) Any multiple of π (b) (c) 0 (d) odd multiple of π
10.
 (a) x = 3, y = 2 (b) x = 3, y = -2 (c) x = -3, y = -2 (d) x = -3, y = 2
Showing 1 to 10 out of 92 Questions