Q31 of 261 Page 811

Evaluate the following integrals


Let

Using


And


,


we get




Let


⇒ ,


when x=0, t=0


and when , t=1.


Hence,





Let t-2=u


⇒ dt=du.


Also, when t=0, u=-2


and when t=1, u=-1.





Hence,







(Using )


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