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Integrate the function: cos3xelogsinx

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प्रश्न

Integrate the function:

`cos^3 xe^(log sinx)`

योग
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उत्तर

Let `I = cos^3 x  e^(log sinx)   dx`

`= int cos^3 x sin x` dx

Substituting cos x = t,

⇒ - sin x dx = dt

⇒ sin x dx = - dt

Hence, `I = - int t^3   dt`

`= - t^4/4 + C`

`= - 1/4 cos^4 x + C`

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अध्याय 7: Integrals - Exercise 7.12 [पृष्ठ ३५२]

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एनसीईआरटी Mathematics Part 1 and 2 [English] Class 12
अध्याय 7 Integrals
Exercise 7.12 | Q 15 | पृष्ठ ३५२

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