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Q12 of 380 Page 658

Evaluate the following integrals:

we know that 1+cos2x=2cos²x

So, applying this identity in the given integral we get,

⇒

⇒

⇒

Let sinx =t

⇒ cosx dx=dt

⇒

⇒

Resubstituting the value of t=sinx we get

⇒

Ans:

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