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MHT CET2010MathematicsDifferentiation

If x= , y= , then the value of d² y d x² at = 4 is

Options

  1. A0
  2. B1
  3. C-1
  4. D2

Correct answer

C. -1

Step-by-step solution

Given, aligned x &= , y= d x d &= , d y d = ² d y d x &= ² = cosec Now, d² y d x² &= d d x ( d y d x ) &= d d ( cosec ) d d x &=- cosec 1 0 0 &=- 1 ³ At = 4 , & ( d² y d x² )_ = 4 =- 1 ( 4 )³ =-1 aligned

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