- #1
kevester
- 2
- 0
Homework Statement
a) if f(x)= ln(x/√(a-x^2)) show that f'(x) = a^2/x(a^2-x^2)
∫1/x(25-x^2) dx
The Attempt at a Solution
for a) i tried differentiating the top (ans. = 1) then the bottom.. obviously the bottom's where hte prob is at lol.. i kno d/dx ln[f(x)] --> 1/(f(x) χ f '(x) but i still lost..
for b) i tried integrating it but idk I am a bit lost..