Q.
If A and B are two square matrices such that B=−ABA-1 then (A+B)2=
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a
O
b
A2+B2
c
A2+2AB+B2
d
A+B
answer is B.
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Detailed Solution
B=−ABA-1 BA=−ABA-1A BA=-AB A+B2=A2+B2
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