# Chapter 9 - Section 9.3 - Logarithmic Functions - 9.3 Exercises: 74

11

#### Work Step by Step

For any positive real number $b$ (such that $b\ne1$), we know that $b^{log_{b}r}=r$ (as long as $r\gt0$). Therefore $5^{log_{5}11}=11$.

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