हिंदी

∫ E X ( Cot X + Log Sin X ) D X

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प्रश्न

\[\int e^x \left( \cot x + \log \sin x \right) dx\]
योग
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उत्तर

\[\text{ Let I }= \int e^x \left( \cot x + \log \sin x \right)dx\]

\[\text{ Here,} f(x) = \log \sin x Put e^x f(x) = t\]

\[ \Rightarrow f'(x) = \cot x\]

\[\text{ let e}^x \log \sin x = t\]

\[\text{ Diff   both  sides w . r . t x}\]

\[ e^x \text{ log } \left( \sin x \right) + e^x \times \frac{1}{\sin x} \times \cos x = \frac{dt}{dx}\]

\[ \Rightarrow \left[ e^x \text{ log}\left( \sin x \right) + e^x \cot x \right]dx = dt\]

\[ \Rightarrow e^x \left( \cot x + \text{ log }\sin x \right)dx = dt\]

\[ \therefore \int e^x \left( \cot x + \log \sin x \right)dx = \int dt\]

\[ = t + C\]

\[ = e^x \log \sin x + C\]

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 18: Indefinite Integrals - Exercise 19.26 [पृष्ठ १४३]

APPEARS IN

आर.डी. शर्मा Mathematics Volume 1 and 2 [English] Class 12
अध्याय 18 Indefinite Integrals
Exercise 19.26 | Q 9 | पृष्ठ १४३
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