Q. 314.2( 5 Votes )

# <span lang="EN-US

Answer :

For this we have to apply integration by parts

Let u and v be two functions then To choose the first function u we use “ILATE” rule

That is

I=inverse trigonometric function

L=logarithmic function

A=algebraic function

T=trigonometric functions

E=exponential function

So in this preference, the first function is chosen to make the integration simpler.

Now, In the given question x2 is an algebraic function and it is chosen as u(A comes first in “ILATE” rule)

So first let us integrate the equation and then let us substitute the limits in it.

Let us recall a formula cos2x=2 –1

Now substitute it   Now let us recall other formula i.e =  and Using them we can write the equation as          On substituting these values we get  Rate this question :

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