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AP EAMCET · Maths · Indefinite Integration

If \(\frac{13 x+43}{2 x^2+17 x+30}=\frac{A}{2 x+5}+\frac{B}{x+6}\) then \(A+B=\)

  1. A \(8\)
  2. B \(18\)
  3. C \(3\)
  4. D \(5\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(8\)

Step-by-step Solution

Detailed explanation

\begin{aligned} & \frac{13 x+43}{2 x^2+17 x+30}=\frac{\mathrm{A}}{2 x+5}+\frac{\mathrm{B}}{x+6} \\ & \frac{13 x+43}{2 x^2+17 x+30}=\frac{\mathrm{A}(x+6)+\mathrm{B}(2 x+5)}{2 x^2+17 x+30} \\ & \Rightarrow 13 x+43=\mathrm{A}(x+6)+\mathrm{B}(2 x+5) \\ & \Rightarrow 13…