The integral of $\sin^2 x \csc x$

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I am a high school student in year 8 who is just curious about mathematics. I am struggling with mainly the csc x part. Can you help me, please?

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$$\sin^2 x \csc x = \sin x$$ $$\int \sin^2 x \csc x =\int \sin x = -\cos x + C$$