A) 3
B) 2
C) 1
D) 0
Correct Answer: A
Solution :
(a) \[{{\left( {{a}^{x}} \right)}^{zy}}+{{\left( {{a}^{y}} \right)}^{zx}}+{{\left( {{a}^{z}} \right)}^{xy}}\] \[={{a}^{xyz}}+{{a}^{xyz}}+{{a}^{xyz}}\] \[=3\times {{a}^{xyz}}\] \[xyz=0\Rightarrow 3\times {{a}^{xyz}}=3\times {{a}^{{}^\circ }}=3\]You need to login to perform this action.
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