Question

Найдите f'(x), f'(1/4), если f(x)=1/2lnx+3

Answer 1

f'(x)=1/2x f'(1/4)= 1/(2*1/4)=2

Answer 2

f'(x)=1/2*1/x=1/2x

Answer 3

f'(1/4)=2

Answer 4

2х в знаменателе

Answer 5

Да, 1/(2x)