# Chapter 5 - Logarithmic Functions - Exercises to Skills for Chapter 5 - Page 232: 7

$\pm 2$

#### Work Step by Step

Use the fact that $\log 10^a=a$ and the fact that $10000=10^4$ to rewrite the expression as $\sqrt{\log 10000}=\sqrt{\log 10^4}=\sqrt{4}$. Since $\sqrt{4}=\pm 2$, the expression simplifies to $\pm 2$.

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