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Integrate the function in x sec2 x.

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प्रश्न

Integrate the function in x sec2 x.

योग
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उत्तर

Let `I = int x sec^2 x  dx`

Put `u = x, v = sec^2 x`

`therefore int uv  dx = u int v  dx - int ((du)/dx int v  dx) dx`

`= x int sec^2 x  dx - int [(d(x))/dx  int sec^2  x  dx]  dx`

`= x tan x - int 1. tan x  dx`

`= x tan x + log abs (cos x) + C`

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अध्याय 7: Integrals - Exercise 7.6 [पृष्ठ ३२७]

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एनसीईआरटी Mathematics Part 1 and 2 [English] Class 12
अध्याय 7 Integrals
Exercise 7.6 | Q 12 | पृष्ठ ३२७

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