A) \[{{(-1)}^{n}}=-1,\] if 'n' is an odd integer.
B) For any rational number \[a,{{a}^{o}}=1.\]
C) If \[4\times {{8}^{m}}={{2}^{5}}\]then m = 1.
D) \[{{(27)}^{\frac{1}{3}}}={{\left( \frac{1}{3} \right)}^{-1}}.\]
Correct Answer: B
Solution :
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