Why for this int (3x^2-x+1)/(x^3-2x^2) we use (A/x)+(B/x^2)+(C/x-2) And for this int (3x^2-x+1)/(x^3-x^2) we use (A/x^2)+(B/x-1) Why the first int we considered case I (fraction partial) and the second one we use case II? Sorry for my english
1 Answer
Mar 11, 2018
The first case (partial fraction) is the right one for both expressions.
In second case, simly, I guess a short way to solve the problem.
Explanation:
The right partial fraction decomposition: