Techniques of Differentiation - Implicit Differentiation

Techniques of Differentiation - Implicit Differentiation

Find the \(\frac{\mathrm{d}y}{\mathrm{d}x}\) of the following equations in terms of \(x\) and \(y\):

  1. \({{x}^{2}}+{{y}^{2}}=25\)
  2. \({{x}^{3}}+4{{y}^{2}}=x+2\)
  3. \(\cos x+\tan y={{y}^{3}}\)

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Answer:(i) \(-\frac{x}{y}\) (ii) \(\frac{1-3x^2}{8y}\) (iii) \(\frac{\sin x}{\sec^2y-3y^2}\)

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