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## anonymous 5 years ago find integration of sin(x).sin(x)/cos(x)

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1. anonymous

Let's write it in a better form first ^_^:$\int\limits_{}^{} \sin^2x/cosx dx$ you can take: u = sinx du = cos x dx so: $\int\limits_{}^{}u^2 du$ $= u^3/3 + c$ $= \sin^3x/3 + c$ Hope it's clear now ^_^

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