Matrices And Determinants Multiple Questions and Answers.

1. A scalar is denoted by
A. n
B. k
C. r
D. a

2.In matrices (AB)−1 equals to
A. B−1
B. A−1
C. B−1 A−1
D. A−1 B−1

3.If the number of rows in A matrix are equal to the number of column in B matrix, then A and B are comfortable for
A. product
B. division
C. transpose
D. making identity

4.If Bt = B then the matrix B is called
A. symmetric
B. skew symmetric
C. Transpose
D. determinant

5.In a unit matrix, number of diagonal elements are
A. 2
B. 3
C. 1
D. 0


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