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TS EAMCET · Maths · Differentiation

let \(g(x) \neq 0, g^{\prime}(x) \neq 0, f(x) \neq 0, f^{\prime}(x) \neq 0\). If \(F(x)=f(x) g(x), G(x)=f^{\prime}(x) g^{\prime}(x)\) and \(F^{\prime}(x)=G(x) H(x)=F(x) K(x)\), then \(H(x)+K(x)=\)

  1. A \(\frac{f^{\prime}}{f}+\frac{f}{f^{\prime}}+\frac{g}{g^{\prime}}\)
  2. B \(\frac{f^{\prime}}{f}+\frac{g}{g^{\prime}}+\frac{g^{\prime}}{g}\)
  3. C \(\frac{f^{\prime} g^{\prime}+f g}{f f^{\prime} g g^{\prime}}\)
  4. D \(\frac{f^{\prime}}{f}+\frac{g}{g^{\prime}}+\frac{f}{f^{\prime}}+\frac{g^{\prime}}{g}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\frac{f^{\prime}}{f}+\frac{g}{g^{\prime}}+\frac{f}{f^{\prime}}+\frac{g^{\prime}}{g}\)

Step-by-step Solution

Detailed explanation

We have, \(F(x)=f(x) g(x)\)…