Question

f(x)=x-4√x найти производную

Answer 1

$f(x) = x - 4 \sqrt{x} \\ \frac{d}{dx} (x - 4 \sqrt{x} ) = 1 - \frac{4}{2 \sqrt{x} } = 1 - \frac{2}{ \sqrt{x} }$

Answer 2

f'(x)=(x-4√x)'=1-4×(-1/2)/√x

f'(x)=1+2/√x

Ответ : f'(x)=1+2/√x