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Evaluate the following limit. limx→0ax+ xcosxbsinx - Mathematics

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प्रश्न

Evaluate the following limit.

`lim_(x -> 0) (ax +  xcos x)/(b sin x)`

योग
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उत्तर

`lim_(x → 0)(ax + xcosx)/(bsinx)`

= `lim_(x → 0) (x (a + cosx))/((sin x). b)`

= `lim_(x → 0)(x/(sinx)). (a + cosx)/b`

= `lim_(x → 0) (a + cosx)/b`        .......`[∵  lim_(x → 0) x/(sinx) = 1]`

= `(a + cos 0)/b`

= `(a + 1)/b`

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अध्याय 13: Limits and Derivatives - Exercise 13.1 [पृष्ठ ३०२]

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एनसीईआरटी Mathematics [English] Class 11
अध्याय 13 Limits and Derivatives
Exercise 13.1 | Q 18 | पृष्ठ ३०२

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