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महाराष्ट्र राज्य शिक्षण मंडळएचएससी वाणिज्य (इंग्रजी माध्यम) इयत्ता १२ वी

State whether the following statement is True or False: If y = log(log x), then dydx = logx - Mathematics and Statistics

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प्रश्न

State whether the following statement is True or False:

If y = log(log x), then `("d"y)/("d"x)` = logx

पर्याय

  • True

  • False

MCQ
चूक किंवा बरोबर
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उत्तर

False

shaalaa.com
The Concept of Derivative - Derivatives of Logarithmic Functions
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1.3: Differentiation - Q.3

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log u = x × log x

Diff. w.r.to x,

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∴ `"du"/("d"x)` = u(1 + log x)

∴ `"du"/("d"x) = x^x (1 +  square)`    .....(ii)

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Diff.w.r.to x, we get

`"dv"/("d"x") = 20^square*log(20)`     .....(iii)

Substituting equations (ii) and (iii) in equation (i), we get

`("d"y)/("d"x)` = xx(1 + log x) + 20x.log(20)


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