मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

Select the correct answer from the given alternative: If y = 5sinx-24sinx+3, then dydx = - Mathematics and Statistics

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प्रश्न

Select the correct answer from the given alternative:

If y = `(5sin x - 2)/(4sin x + 3)`, then `("d"y)/("d"x)` =

पर्याय

  • `(7 cos x)/(4 sin x + 3)^2`

  • `(23 cos x)/(4 sin x + 3)^2`

  • `- (7 cos x)/(4 sin x + 3)^2`

  • `-(15 cos x)/(4 sin x + 3)^2`

MCQ
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उत्तर

If y = `(5sin x - 2)/(4sin x + 3)`, then `("d"y)/("d"x)` = `underline ((23 cos x)/(4 sin x + 3)^2)`

Explanation:

y = `(5sinx - 2)/(4 sin x + 3)`

Differentiating w.r.t.x, we get

`(dy)/(dx) = ((4sinx + 3)d/dx(5sinx - 2) - (5sinx - 2)d/dx (4sinx + 3))/(4sinx + 3)^2`

= `((4sin x + 3)(5cosx) - (5sinx - 2)(4cos x))/(4 sinx + 3)^2`

= `(20sin x cosx + 15cosx - 20sinxcosx + 8cosx)/(4sinx + 3)^2`

= `(23cosx)/(4sinx + 3)^2`

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 9: Differentiation - Miscellaneous Exercise 9 [पृष्ठ १९४]

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बालभारती Mathematics and Statistics 2 (Arts and Science) [English] Standard 11 Maharashtra State Board
पाठ 9 Differentiation
Miscellaneous Exercise 9 | Q I. (4) | पृष्ठ १९४
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