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प्रश्न
`int sqrt(1 + sin2x) dx`
Evaluate: `int sqrt(1 + sin 2x) dx`
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उत्तर
`int sqrt(1 + sin2x) dx`
= `int sqrt(sin^2x + cos^2x + 2 sinx cosx) dx`
= `int sqrt((cosx + sinx)^2) dx`
= `int (cosx + sinx) dx`
= sin x – cos x + c
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