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)=

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