A) \[A+{A}'\]
B) \[A{A}'\]
C) \[{A}'A\]
D) \[A-{A}'\]
Correct Answer: D
Solution :
Since\[{{A}_{21}}=1\], so it is symmetric. \[(A{A}'{)}'=({A}'{)}'{A}'=A{A}'\], so it is symmetric. \[({A}'A{)}'={A}'({A}'{)}'={A}'A\], so it is symmetric. But\[(A-{A}'{)}'={A}'-A\ne A-{A}'\]. Hence it is not symmetric.You need to login to perform this action.
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