Integration by Partial FractionsIntegration by Partial Fractions. 

We know that a rational function is a ratio of two polynomials P(x)/Q(x), where Q(x) ≠ 0. Now, if the degree of P(x) is lesser than the degree of Q(x), then it is a proper fraction, else it is an improper fraction

 Because the partial fractions are each simpler. This can help solve the more complicated fraction. For example it is very useful in Integral Calculus.

 

Integration by partial fraction

Integration by partial fraction