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Suppose A = [(a,b),(c,d)] is a real matrix with nonzero entries, ad – bc = 0, and A^2 = A. Then a + d equals

+2 votes

asked Apr 6, 2018 in JEE by kratos

Suppose A = [(a,b),(c,d)] is a real matrix with nonzero entries, ad – bc = 0, and A2 = A. Then a + d equals

(A) 1

(B) 2

(C) 3

(D) 4

class-11
class-12
jee advanced 2020
kvpy

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1 Answer

+2 votes

answered May 26, 2020 by kratos

Best answer

Correct option (A) 1

Explanation:

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