Question

Найдите производную функцию f(x)= 4x-2/x+1

Answer 1

f'(x)=(4x-2)'(x+1)-(4x-2)(x+1)'/(x+1)²=4x+4-4x+2/(x+1)²=0

Answer 2

y= 4x-2/ x+1
y' = 4(x+1) - 1(4x-2) / (x+1)^2 = 4x+4 - 4x +2/ (x+1)^2 = 6/ (x+1)^2