∫1/(x^2-3x+2)dx

问题描述:

∫1/(x^2-3x+2)dx

你好:

∫1/(x^2-3x+2)dx
=∫1/(x-1)*(x-2)dx
=∫1/(x-2)dx -∫1/(x-1)dx
=ln|x-2|-ln|x-1|
=ln|(x-2)/(x-1)|+C


谢谢