Differentiation - Power Rule and Derivatives of Algebraic Functions

Differentiation - Power Rule and Derivatives of Algebraic Functions

TGM Original Questions

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

  1. \(y = -5x^{-2} + \frac{1}{3}x^6 + 1\)
  2. \(y = \frac{5}{2x^2} - \frac{3\sqrt{x}}{5} + 18\sqrt[9]{x}\)
  3. \(y = \frac{-3x^5 + 6x^4 - 2x^2 + 4}{x^2}\)
  4. \(y = \frac{x^3 + 2x^2 - x + 1}{\sqrt{x}}\)

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Answer:(i) \(\dfrac{10}{x^3}+2x^5\) (ii) \(-\dfrac{5}{x^3}-\dfrac{3}{10\sqrt{x}}+\dfrac{2}{\sqrt[9]{x^8}}\) (iii) \(-9x^2+12x-\dfrac{8}{x^3}\) (iv) \(\dfrac52\sqrt{x^3}+3\sqrt{x}-\dfrac{1}{2\sqrt{x}}-\dfrac{1}{2\sqrt{x^3}}\)

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