1/((x-1)*(x-2))+1/((x-2)*(x-3))+1/((x-3)*(x-4)).+1/((x+2006)*(x-2007))很难,难于上青天!提示:是(x-1)*(x-2)分之一加上.,.是省略号,有关分式加减的
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![1/((x-1)*(x-2))+1/((x-2)*(x-3))+1/((x-3)*(x-4)).+1/((x+2006)*(x-2007))很难,难于上青天!提示:是(x-1)*(x-2)分之一加上.,.是省略号,有关分式加减的](/uploads/image/z/5478128-8-8.jpg?t=1%2F%28%28x-1%29%2A%28x-2%29%29%2B1%2F%28%28x-2%29%2A%28x-3%29%29%2B1%2F%28%28x-3%29%2A%28x-4%29%29.%2B1%2F%28%28x%2B2006%29%2A%28x-2007%29%29%E5%BE%88%E9%9A%BE%2C%E9%9A%BE%E4%BA%8E%E4%B8%8A%E9%9D%92%E5%A4%A9%21%E6%8F%90%E7%A4%BA%EF%BC%9A%E6%98%AF%28x-1%29%2A%28x-2%29%E5%88%86%E4%B9%8B%E4%B8%80%E5%8A%A0%E4%B8%8A.%2C.%E6%98%AF%E7%9C%81%E7%95%A5%E5%8F%B7%2C%E6%9C%89%E5%85%B3%E5%88%86%E5%BC%8F%E5%8A%A0%E5%87%8F%E7%9A%84)
1/((x-1)*(x-2))+1/((x-2)*(x-3))+1/((x-3)*(x-4)).+1/((x+2006)*(x-2007))很难,难于上青天!提示:是(x-1)*(x-2)分之一加上.,.是省略号,有关分式加减的
1/((x-1)*(x-2))+1/((x-2)*(x-3))+1/((x-3)*(x-4)).+1/((x+2006)*(x-2007))
很难,难于上青天!
提示:是(x-1)*(x-2)分之一加上.,.是省略号,有关分式加减的
1/((x-1)*(x-2))+1/((x-2)*(x-3))+1/((x-3)*(x-4)).+1/((x+2006)*(x-2007))很难,难于上青天!提示:是(x-1)*(x-2)分之一加上.,.是省略号,有关分式加减的
1/(x-1)(x-2)=1/(x-2)-1/(x-1)
同理
1/(x-2)(x-3)=1/(x-3)-1/(x-2)
1/(x-3)(x-4)=1/(x-4)-1/(x-3)
.
1/(x-2006)(x-2007)=1/(x-2007)-1/(x-2006)
1/((x-1)*(x-2))+1/((x-2)*(x-3))+1/((x-3)*(x-4)).+1/((x+2006)*(x-2007))
=1/(x-2)-1/(x-1)+1/(x-3)-1/(x-2)+1/(x-4)-1/(x-3)+...
+1/(x-2007)-1/(x-2006)
=1/(x-2007)-1/(x-1)
=(x+2006)/(x-1)(x-2007)
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七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式:X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X.
分解因式----(X*X-X)(X*X-X-2)+1
】x(x+1)+x^2(x-1)
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做
x-1/x-2
{2X+1}+{X}
(x^2-1)/x
x^2-1/x
2X+|X+1|
|x-1|+|x-2|
(x+1)/(x+2)
/X+1/+/X+2/
2x/(1-x)
|X+2|+|X-1|
2x-1 (x
|x-2|+|x-1|