Techniques of Differentiation - Quotient Rule

Techniques of Differentiation - Quotient Rule

TGM Original Questions

Find the derivative of each of the following functions with respect to \(x\).

  1. \(f(x) = \frac{(x+3)^2}{x^2+5x+6}\)
  2. \(f(x) = \frac{4x^2+4x+1}{(2x+1)^{\frac{1}{2}}}\)
  3. \(f(x) = \frac{3e+2}{1+2x+4x^2}\)
  4. \(f(x) = \sqrt{\frac{\pi(x^2-1)}{x-1}}\)

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Answer:(i) \(-\dfrac1{(x+2)^2}\) (ii) \(3\sqrt{2x+1}\) (iii) \(-\dfrac{(3e+2)(8x+2)}{(4x^2+2x+1)^2}\) (iv) \(\dfrac{\sqrt{\pi}}{2\sqrt{x+1}}\)

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