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![Ex 7.2, 27 - Chapter 7 Class 12 Integrals - Part 3](https://d1avenlh0i1xmr.cloudfront.net/f802e8fe-72a1-4499-ad4b-4973137d6882/slide3.jpg)
Ex 7.2
Last updated at April 16, 2024 by Teachoo
Ex 7.2, 27 2 cos 2 Step 1: Let sin 2 = Differentiating both sides . . . cos 2 . 2 = cos 2 . 2= 2 cos 2 = 2 cos 2 . = = 2 cos 2 Step 2: Integrating the function 2 cos 2 . putting 2 = & = 2 cos 2 = cos 2 . 2 cos 2 = 2 . = 1 2 . = 1 2 1 2 = 1 2 . 1 2 + 1 1 2 + 1 + = 1 2 3 2 3 2 + = 1 3 3 2 + = +