Here is a picture of the problem: http://i3.photobucket.com/albums/y62/Phio/34.jpg" [Broken]
y - f(c) = f '(c) (x - c)
The Attempt at a Solution
1/(5+x)^1/2 = (5 + x) ^ -1/2 = (1/5)^(1/2) * (1 + x/5)^(-1/2)
I have this. But I don't know if i'm on the right track...
Last edited by a moderator: