Answer
(a) $x=1/2$
(b) $x=16$
Work Step by Step
(a)
$x= \log_{4}2=\log_{4}4^{1/2}=\frac{1}{2}$
(b)
We are given:
$\log_{4}x=2$
This means:
$4^{2}=x$
$x=16$
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