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NDA2012MathematicsDifferentiationActual

If y= t and x= t , then what is d y d x equal to?

Options

  1. Ax y
  2. Bx / y
  3. C-y / x
  4. D-x / y

Correct answer

D. -x / y

Step-by-step solution

d y d t =- t, d x d t = t d y d x = d y / d t d x / d t = - t t =- x y .

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