>>732
積分区間を3個に分ける

∫[x=0,3] (2x-3) / √|x^2 -3x+2| dx
=∫[x=0,1] (2x-3) / √(x^2 -3x+2) dx
+∫[x=1,2] (2x-3) / √(-x^2 +3x-2) dx
+∫[x=2,3] (2x-3) / √(x^2 -3x+2) dx