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Find the following integrals: ∫2-3sinxcos2xdx

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प्रश्न

Find the following integrals:

`int (2 - 3 sinx)/(cos^2 x) dx.`

योग
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उत्तर

Let `I = int (2 - 3 sin x)/(cos^2 x)` dx

`I = int (2/(cos^2 x) - (3 sin x)/(cos^2 x))` dx

`I = int (2 sec^2 x - 3 tan x sec x)` dx

`I = 2 int sec^2 x  dx - 3 int tan x sec x` dx

I = 2 tan x - 3 sec x + C

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अध्याय 7: Integrals - Exercise 7.1 [पृष्ठ २९९]

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एनसीईआरटी Mathematics Part 1 and 2 [English] Class 12
अध्याय 7 Integrals
Exercise 7.1 | Q 20 | पृष्ठ २९९

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