Question

If f(x)=e^x + x and g is inverse of f then find g'(2+log2)

Answer 1

\[\LARGE g'(2+\log2)=\frac{1}{e^{g(2+\log2)}+1}\]
im stuck here..

Answer 2

how do i get g(2+log2) ? when does f give 2+log2? :O

Answer 3

x= - 2

Answer 4

what happens at x=-2?

Answer 5

f(-2)=1/e^2 -2?

Answer 6

hold on a sec ... if by some manipulation i should be able to get that

Answer 7

how can we get that value by simple hit and trial XD

Answer 8

put x = log(2)

Answer 9

woah :O

Answer 10

biingo!