手机编程软件c4droid:分式的加减

来源:百度文库 编辑:高校问答 时间:2024/05/01 03:43:24
化简
1/[(X+1)(X+2)]+
1/[(X+2)(X+3)]+
1/[(X+3)(X+4)]

原式=1/(x+1)-1/(x+2)+1/(x+2)-1/(x+3)+1/(x+3)-1/(x+4)=1/(x+1)-1/(x+4)=3/[(x+1)(x+4)]