Question
Solve for $x :\log_{10}x = -2.$

Answer

$ \log _{10} x=-2$
$ \Rightarrow 10^{-2}=x $
$ \Rightarrow x=10^{-2}$
$\Rightarrow x=\frac{1}{10^2} $
$ \Rightarrow x=\frac{1}{100} $
$\Rightarrow x=0.01$

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