Answer
$10$
Work Step by Step
Recall the basic exponent property (pg. 360):
$a^ma^n=a^{m+n}$
Applying this property, the given expression is equivalent to:
$=10^{\frac{1}{2}+\frac{1}{2}}$
$=10^{\frac{2}{2}}$
$=10^{1}$
$=10$
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