Question

розвязати...................

Answer 1

$log_{2} ^{2} x = 1 \\ 1) log_{2}x = 1 \\ x = {2}^{1} = 2 \\ 2) log_{2}x = - 1 \\ x = {2}^{ - 1} = \frac{1}{2}$
Ответ: 1/2; 2.