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∫ X Sin 5 X 2 Cos X 2 D X - Mathematics

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प्रश्न

\[\int x \sin^5 x^2 \cos x^2 dx\]
योग
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उत्तर

\[\text{ Let  I} = \int x \cdot \sin^5 x^2 \cdot \cos x^2 \text{ dx }\]
\[\text{ Putting  sin  x}^2 = t\]
\[ \Rightarrow \text{ cos} \left( x^2 \right) \times 2x \text{ dx } = dt\]
\[ \Rightarrow \text{ cos} \left( x^2 \right) \cdot x \text{ dx }= \frac{dt}{2}\]
\[ \therefore I = \frac{1}{2}\int t^5 \cdot dt\]
\[ = \frac{1}{2} \left[ \frac{t^6}{6} \right] + C\]
\[ = \frac{t^6}{12} + C\]
\[ = \frac{\sin^6 x^2}{12} + C .....\left[ \because t = \sin x^2 \right]\]

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अध्याय 19: Indefinite Integrals - Revision Excercise [पृष्ठ २०३]

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आरडी शर्मा Mathematics [English] Class 12
अध्याय 19 Indefinite Integrals
Revision Excercise | Q 36 | पृष्ठ २०३

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