Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$log\frac{0.2}{1\times10^{-3}]^{2}$$

Answer

$$log(0.21)/10^3]^2$$

Solution


Use Negative Power Rule: \({x}^{-a}=\frac{1}{{x}^{a}}\).
Simplify.
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