Q.
The value of the integral ∫0π|sin2x|dxis _____
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answer is 2.
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Detailed Solution
∫0πsin2xdx=12∫02πsintdt=12×2∫0πsint dt=2 ( put x=t2 ) ( since ∫02af(x)dx =2 ∫0af(x)dx if f (2a-x)= f(x) here sin (2π-x)=sinx )
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