Question

find a in the following

Answer 1

$\frac{1}{ log_{a}(8) } = 0.5 \\ log_{a}(8) = \frac{1}{0.5} = 2 \\ a = \sqrt{8} = 2 \sqrt{2} \\ \\ log_{a}(9) = 0.5\\ {a}^{0.5} = 9 \\ a = {9}^{2} = 81$