解答题 22.求∫-22(3x+1)max{2,x2}dx.
【正确答案】-22(3x+1)max{2,x2}dx=∫-22max{2,x2}dx=2∫02max{2,x2}dx,
由max{2,x2}=
-22(3x+1)max{2,x2}dx=
【答案解析】