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TS EAMCET · Maths · Indefinite Integration

The partial fraction decomposition of 9x-7(x+3)x2+1 is

  1. A 175(x+3)-(17x-6)5x2+1
  2. B -175(x+3)-(17x-6)5x2+1
  3. C 175(x+3)+(17x-6)5x2+1
  4. D -175(x+3)+(17x-6)5x2+1
Verified Solution

Answer & Solution

Correct Answer

(D) -175(x+3)+(17x-6)5x2+1

Step-by-step Solution

Detailed explanation

The partial fraction for px+qx+ax2+b2 is of type Ax+a+Bx+Cx2+b2 Hence, 9x-7x+3x2+1=Ax+3+Bx+Cx2+1 ⇒9x-7x+3x2+1=Ax2+1+Bx+Cx+3x+3x2+1 ⇒9x-7=Ax2+1+Bx+Cx+3 ⇒9x-7=Ax2+1+Bx2+3Bx+Cx+3C On comparing, the coefficients of x2, x and the constant term, we get…