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प्रश्न
Integrate the functions:
`sqrt(sin 2x) cos 2x`
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उत्तर
Let `I = int sqrtsin 2x cos 2x dx`
Put sin 2x = t
⇒ 2 cos 2x dx = dt
∴ `I = 1/2 int t^(1/2) dt = 1/2 * t^(1/2 + 1)/(1/2 + 1) + C`
`1/2 xx 2/3 t^(3/2) + C = 1/2 t^(3/2) + C`
`1/3 (sin 2x)^(3/2) + C`
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