Question

Solve the questions on the logarithm

Answer 1

$10. \: log_{8}x = - \frac{4}{3} \\ {8}^{ - \frac{4}{3} } = x \\ { ({2}^{3} )}^{ - \frac{4}{3} } = x \\ ({ \frac{ 1}{2}) }^{4} = x \\ x = - 16$