Question

O numero real x , tal que log x (9/4)= 1/2

Answer 1

$\log_x \frac{9}{4}=\frac{1}{2} \\ \\ x^{\frac{1}{2}}=\frac{9}{4} \\ \\ x=(\frac{9}{4})^2 \\ \\ x=\frac{81}{16}$