Ex 7.2, 37 - Integrate x3 sin (tan-1 x4) / 1 + x8 - Ex 7.2

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  1. Chapter 7 Class 12 Integrals
  2. Serial order wise
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Ex 7.2, 37 3 ( tan 1 4 ) 1+ 8 Step 1: Let tan 1 4 = Differentiating both sides . . . 1 1 + 4 2 . 4 = 1 1 + 8 . 4 3 = 4 3 1 + 8 = = 1 + 8 4 3 . Step 2: Integrating the function 3 tan 1 4 1 + 8 . Putting 1 4 = & = 1 + 8 4 3 . = 3 1 + 8 . 1 + 8 4 3 = sin 4 = 1 4 sin . = 1 4 cos + = +

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