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JEE Mains · Maths · STD 12 - 7.2 definite integral

समाकल \(\int_{-1}^{\frac{3}{2}}\left(\left|\pi^2 x \sin (\pi x)\right|\right) d x\) = ___

  1. A \(3+2 \pi\)
  2. B \(4+\pi\)
  3. C \(1+3 \pi\)
  4. D \(2+3 \pi\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(1+3 \pi\)

Step-by-step Solution

Detailed explanation

Let, \(\mathrm{I}=\pi^2 \int_{-1}^{3 / 2}|\mathrm{x} \sin \pi \mathrm{x}| \mathrm{dx}\) \(=\pi^2\left\{\int_{-1}^1 \mathrm{x} \sin \pi \mathrm{xdx}-\int_1^{3 / 2} \mathrm{x} \sin \pi \mathrm{xdx}\right\} \)…
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