Listen NCERT Audio Books - Kitabein Ab Bolengi
Integrate the rational functions.
⇒ 5x = A(x + 2)(x - 2) + B(x + 1)(x - 2) + C(x+1)( x + 2) …(1)
Substituting x = -1, -2 and 2 respectively in equation (1), we get,
A =, B =, and C =
[Hint: multiply numerator and denominator by xn-1 and put xn=t]
[Hint: Put ex = t]