evaluate the integral of (sin 2x) / (1 + cos^2 x)

[clw89]

the indefinite integral: (sin2x)/(1+cos[sup:2thlgo3e]2[/sup:2thlgo3e]x)

 

[royhaas]

Re: evaluate the integral

Start with \(\displaystyle 2cos^2(x)=1+cos(2x)\)