ExamBro
ExamBro
TS EAMCET · Maths · Differentiation

If \(y=\frac{a x+b}{c x+d}\), than \(\frac{d x}{d y}=\)

  1. A \(\frac{a d-b c}{(a x+b)^2}\)
  2. B \(\frac{a d-b c}{(a-c y)^2}\)
  3. C \(\frac{a d+b c}{(c x+d)^2}\)
  4. D \(\frac{a d+b c}{(a+c y)^2}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\frac{a d-b c}{(a-c y)^2}\)

Step-by-step Solution

Detailed explanation

Given \(y=\frac{a x+b}{c x+d}\) \(\Rightarrow \mathrm{x}=\frac{\mathrm{b}-\mathrm{yd}}{\mathrm{yc}-\mathrm{a}}\) \(\text { now } \frac{\mathrm{dx}}{\mathrm{dy}}=\frac{\mathrm{ad}-\mathrm{bc}}{(\mathrm{yc}-\mathrm{a})^2}\)