Question

simplify: [-a^-5/-a^10 b^-9*(a^-15*c^0)]​

Answer 1

Answer:

$= \left(-\frac{a^{-5}}{-a^{10}}b^{-9}\left(a^{-15}c^0\right)\right)\\= -\frac{a^{-5}}{-a^{10}}\cdot \frac{1}{a^{15}}\cdot \frac{1}{b^9}c^0\\= -1\cdot \frac{a^{-5}}{-a^{10}}\cdot \frac{1}{a^{15}}\cdot \frac{1}{b^9}\\= \frac{1}{a^{15}}\cdot \frac{1}{b^9}\cdot \frac{1}{a^{15}}\cdot \:1\\= 1\cdot \frac{1}{a^{30}b^9}\\= \frac{1}{a^{30}b^9}$

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