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NDA2010MathematicsDifferentiationActual

If x=k( + ) and y=k(1+ ) , then what is the derivative of y with respect to x at = / 2 ?

Options

  1. A-1
  2. B0
  3. C1
  4. D2

Correct answer

A. -1

Step-by-step solution

aligned x & =k( + ) y & =k(1+ ) d x d & =k(1+ ) d y d & =k(0- ) d y d x & = - 1+ & = - 2 1+ 2 & = -1 1 =-1 aligned

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