Question

f(x)=h(x)-(3x/h(x))
h(1)=1
h ' (1)=1
Find f ' (1)

Answer 1

use quotient rule to differentiate f(x)
and then put x=1

Answer 2

I'm applying only the quotient rule? To the fraction? I get (3h(x)-3xh'(x)/h(x)^2)

Answer 3

how u got that ?
f'(x)= h'(x) - (...*quotient rule here*...)

Answer 4

Si h'(x)-[(h(x)*3]-[3x*h'(x)]/h(x)^2

Answer 5

yup, now put x=1

Answer 6

Ahh, gotcha.

Answer 7

good :)