Question

F'(9)если f(x) =1+2√‎x

Answer 1

Ответ:

$\frac{1}{3}$

f'(x)=

$\frac{2}{2 \sqrt{x} } = \frac{1}{ \sqrt{x} }$

f'(9)=

$\frac{1}{ \sqrt{9} } = \frac{1}{3}$