(2)f(x)在[a,c)U(c,b]上连续, limf(x)=o(x=c为瑕点) 瑕积分心fx=fx+fxa (lim 例1 解m=-2文1-n =-m-。-(--或--1 17 (2) f x( )在[ , ) ( , ] a c c b 上连续, lim ( ) x c f x → = (x c = 为瑕点) 瑕积分 ( ) b a f x dx ( ) ( ) c b a c = + f x dx f x dx 1 1 0 lim ( ) c a f x dx − → = 2 0 2 lim ( ) b c f x dx → + + 例 1 求 1 0 2 1 x dx − x 解 1 0 2 1 x dx − x 1 0 0 2 lim 1 x dx x − → = − 1 2 0 0 2 1 lim (1 ) 2 1 d x x − → = − − − 2 0 1 lim 1 0 x → − = − − ( ) 2 0 lim 1 (1 ) 1 1 → = − − − − =