Question

please simplify
I will be thankful to you if you answer my question​

Answer 1

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$(3) {}^{ - 5} \times ( \frac{1}{3} ) {}^{2} \times ( \frac{1}{3} ) {}^{ - 3} \\ \\ = (3) {}^{ - 5} \times (3) {}^{ - 2} \times ( \frac{1}{3 {}^{ - 3} } ) \\ \\ = (3) {}^{ - 5} \times (3) {}^{ - 2} \times (3) {}^{3} \\ \\ = (3) {}^{ - 7} \times (3) {}^{3} \\ \\ = (3) {}^{ - 7 + 3} = ( {3})^{ - 4} \\ \\ = \frac{1}{81}$

$\large\rm\bold{\boxed{a^m\times\:a^n\:=\:a^(m+n)}}$