Question

Qual a derivada de f(x)= raiz de 2x+1?

Answer 1

-(2x-1)=-2x+1 mutiplica por -1)
2x-1=0
x=1/2-x=0,5

Answer 2

Olá,

$f(x)= \sqrt{2x+1}$

$f(x)= (2x+1)^\frac{1}{2}\\ \\ f'(x)= [\frac{1}{2} (2x+1)^{ \frac{-1}{2} }]*2$
$f'(x)= (2x+1)^{ \frac{-1}{2}$

$\boxed{f'(x)= \frac{1}{ \sqrt{2x+1} } }$