8th Class Mathematics Sample Paper Mathematics Sample Paper - 4

  • question_answer
    Express \[{{16}^{-2}}\] as a power with the base 2.

    Answer:

    \[{{16}^{-2}}=\frac{1}{{{(16)}^{2}}}=\frac{1}{{{({{2}^{4}})}^{2}}}=\frac{1}{{{2}^{8}}}\]                      \[[\because \,{{({{a}^{m}})}^{n}}={{a}^{mn}}]\]


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