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JEE Mains · Maths · STD 12 - 7.2 definite integral

यदि \(\int \limits_{0}^{\pi}\left(\sin ^{3} x\right) e^{-\sin ^{2} x} d x=\alpha-\frac{\beta}{e} \int_{0}^{1} \sqrt{t} e^{t} d t\) है, तो \(\alpha+\beta\) बराबर है ........ |

  1. A \(4\)
  2. B \(5\)
  3. C \(6\)
  4. D \(7\)
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Answer & Solution

Correct Answer

(B) \(5\)

Step-by-step Solution

Detailed explanation

\(I=2 \int_{0}^{\pi / 2} \sin ^{3} x e^{-\sin ^{2} x} d x\) \(=2 \int_{0}^{\pi / 2} \sin x e^{-\sin ^{2} x} d x+\int_{0}^{\pi / 2} \cos _{I} x \underbrace{e^{-\sin ^{2} x}(-\sin 2 x)}_{\text {II }} d x\)…
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