Techniques of Differentiation - Derivatives of Exponential Functions

Techniques of Differentiation - Derivatives of Exponential Functions

TGM Original Questions

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

  1. \(y = \mathrm{e}^{2-3x} - \frac{1}{\mathrm{e}^{x}}\)
  2. \(y = \sqrt{\mathrm{e}^{x}} + \frac{1}{\sqrt{\mathrm{e}^{x}}}\)
  3. \(y = \mathrm{e}^{\sqrt{x}}\)
  4. \(y = \mathrm{e}^{2x^{4}} \mathrm{e}^{6x+1}\)

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Answer:(i) \(-3\mathrm e^{2-3x}+\mathrm e^{-x}\) (ii) \(\dfrac12\mathrm e^{x/2}-\dfrac12\mathrm e^{-x/2}\) (iii) \(\dfrac{\mathrm e^{\sqrt{x}}}{2\sqrt{x}}\) (iv) \((8x^3+6)\mathrm e^{2x^4+6x+1}\)

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