Answer
$f(\frac{1}{2})=\sqrt{3} \approx 1.73$
Work Step by Step
Substitute $\frac{1}{2}$ to $x$ in the given function to have:
$f(x) = 3^x
\\f(\frac{1}{2}) = 3^{\frac{1}{2}}
\\f(\frac{1}{2})=\sqrt{3} \approx 1.73$
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