Q47 of 63 Page 163

Evaluate the following:

Given:


Let


Using the property:


⇒


⇒


⇒


Adding equation (1) and (2)


⇒


⇒


⇒ Put 2x=t


⇒ 2xdx=dt


⇒


⇒ As cos(-x) = cos x


Using property:


⇒


Using the property:


⇒


⇒ Now From previous question eq.(7) we obtained


⇒


⇒


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