H hank Junior Member Joined Sep 13, 2006 Messages 209 Nov 15, 2006 #1 Find integral cotx I'm thinking this needs to be written as 1 / tanx and then rewrite it as cosx / sinx. Not sure where to go from there. Help?
Find integral cotx I'm thinking this needs to be written as 1 / tanx and then rewrite it as cosx / sinx. Not sure where to go from there. Help?
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Nov 15, 2006 #2 Go with the cosine divided by the sine and consider the substitution u = sin(x).
skeeter Elite Member Joined Dec 15, 2005 Messages 3,204 Nov 16, 2006 #3 good ... you got it to \(\displaystyle \L \cot{x} = \frac{\cos{x}}{\sin{x}}\) what is the antiderivative of \(\displaystyle \L \frac{f'(x)}{f(x)}\) ... :?:
good ... you got it to \(\displaystyle \L \cot{x} = \frac{\cos{x}}{\sin{x}}\) what is the antiderivative of \(\displaystyle \L \frac{f'(x)}{f(x)}\) ... :?:
