3.  Simplify :

 (ii)     \left (\frac{1}{3^{3}} \right )^{7}

Answers (1)

Given number is \left (\frac{1}{3^{3}} \right )^{7}

Now, on simplifying it we will get

\Rightarrow \left ( \frac{1}{3^3} \right )^7= \frac{1^7}{3^{3\times7}} = \frac{1}{3^{21}} = 3^{-21}                   \left ( \because (a^n)^m = a^{n.m} \ and \ \frac{1}{a^m}= a^{-m}\right )

Therefore, the answer is 3^{-21}

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