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Homework Statement
Calculate the integral:
Homework Equations

The Attempt at a Solution
I tried some trig identities, like t=tan(x/2). The cos^2 smells like an arctan derivative but I can't seem to think of anything that could work...
Homework Statement
Calculate the integral:
Homework Equations

The Attempt at a Solution
I tried some trig identities, like t=tan(x/2). The cos^2 smells like an arctan derivative but I can't seem to think of anything that could work...