Question

Решите
уравнение ..............................

Answer 1

$\int \limits _{x}^4 \frac{dt}{\sqrt{t}} =2\\ \int \limits _{x}^4 \frac{dt}{2\sqrt{t}} =1\\ \sqrt{t} \Big | \limits _{x}^4 =1\\ \sqrt{4}-\sqrt{x} =1\\ 2-\sqrt{x} =1\\ \sqrt{x} =1\\ x=1$

Ответ: 1