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प्रश्न
Find the integrals of the function:
`(sin^2 x)/(1 + cos x)`
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उत्तर
Let `I = int (sin^2 x)/(1 + cos x) dx`
= `int (1 - cos^2 x)/(1+ cos x) dx`
= `int ((1 - cos x) (1 + cos x))/(1 + cos x) dx`
= `int (1 - cos x) dx`
= `int 1 dx - int cos x dx`
= x - sin x + C
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