Class 12

22. Matrices and Determinants question bank (Maths)

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Q1.

The number of non-zero diagonal matrices of order 4 satisfying \( A^2 = A \) is

(A)
2
(B)
4
(C)
16
(D)
15
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Q2.

If \( A \) and \( B \) are 2 matrices such that \( AB = A \) and \( BA = B \), then \( B^2 \) is equal to

(A)
B
(B)
A
(C)
zero matrix
(D)
1
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