Recent content by avid7

Tried again and i got du/dx = -2sinxcosx using the chain rule. Was that correct?? then I was about to use the substitution method..

First of all, hi I'm new here my name is crisanna. I stumbled upon this site across the web and realized this 's a great site! Anyway , here 's my question. Does anyone know how to integrate sin (1 +cos ^2 x) ? I tried the method integrate by parts but I got stucked. Below is my attempt : u=...