A) \[AB\]
B) \[A+B\]
C) \[BA+B\]
D) \[AB+A\]
Correct Answer: B
Solution :
Given, \[AB=A,\,BA=B\] \[{{A}^{2}}+{{B}^{2}}=AA+BB\] \[=(AB)A+(BA)\,B\] \[=A(BA)+B(AB)=AB+BA\] \[=A+B\]You need to login to perform this action.
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