Please help, I need to integrate this for an assignment exam

>>177557
Off the top of my head (I didn't solve this) look up the half angle trig identity for sin^2 and review integration by substitution.

>>177557
ill give you an answer in 2 min if its not too late

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>>177557
this is one fucked up integral, anon. You sure you wrote it down correctly?

>>177557
Use a different method.
You're using V = pi * integral(y^2) * dx
Try V = 2 * pi * integral( x * y ) * dx

OP here, not gonna lie, I fell asleep. But yeah I wrote it down correctly, to do the volumes of revolution we were taught to square the equation, integrate and then multiple it by pi

Shit tier maths

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Also, I should specificy: it's a composite function.