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Simplify:
$ \frac{3^{-5} \times 10^{-5} \times 125}{5^{-7} \times 6^{-5}} $
Given:
\( \frac{3^{-5} \times 10^{-5} \times 125}{5^{-7} \times 6^{-5}} \)To do:
We have to simplify \( \frac{3^{-5} \times 10^{-5} \times 125}{5^{-7} \times 6^{-5}} \).
Solution:
We know that,
$a^{-m}=\frac{1}{a^m}$
$a^m \times a^n=a^{m+n}$
$a^{m}\div a^{n}=a^{m-n}$
Therefore,
$\frac{3^{-5} \times 10^{-5} \times 125}{5^{-7} \times 6^{-5}}=\frac{3^{-5} \times (5\times2)^{-5} \times 5^3}{5^{-7} \times (2\times3)^{-5}}$
$=\frac{3^{-5} \times 5^{-5} \times 2^{-5} \times 5^3}{5^{-7} \times 2^{-5}\times3^{-5}}$
$=2^{-5+5}\times3^{-5+5}\times5^{-5+3+7}$
$=2^0\times3^0\times5^5$
$=1\times1\times5^5$
$=5^5$
Hence, $\frac{3^{-5} \times 10^{-5} \times 125}{5^{-7} \times 6^{-5}}=5^5$.
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