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gladu [14]
1 year ago
5

Hi I’m I don’t understand a variable of what this is saying.

Mathematics
1 answer:
Papessa [141]1 year ago
7 0

given expression to simplify,

q^{-3}r^0s^{-1}\cdot\: q^3r^{-9}s^0\begin{gathered} q^{-3}r^0s^{-1}\cdot\: q^3r^{-9}s^0 \\ q^{-3}\cdot q^3=1 \\ \: =r^0s^{-1}r^{-9}s^0 \\ =1\cdot\frac{1}{r^9}s^{-1}s^0 \\ =1\cdot\frac{1}{r^9}\cdot\frac{1}{s} \\ =\frac{1}{r^9}\cdot\frac{1}{s} \\ =\frac{1}{r^9s} \\ =r^{-9}s^{-1} \end{gathered}

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2 years ago
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