不定积分与导数是两个相反的过程。∵du^(n)/du=nu^(n-1)∴∫u^ndu=[1/(n+1)]u^(n+1)+c本题实例∫x²dx=(1/3)x³+c2+1=3∫u^(1/2)du=(2/3)u^(3/2)+c1/2+1=3/2
