If A= \{\left(\begin{array}{cc}a & b \ c & d)\end{array}: a, b, c, d \in\{-1,1\}\}, then the number of singular matrices in A is

AP EAPCET 15th May 2023 Shift 2 Solved Paper

Section: Mathematics

Question : 18 of 160

Marks: +1, -0

If A={(

a	b
c	d

):a,b,c,d∈{−1,1}}, then the number of singular matrices in A is

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