作业帮(X + 1) /(x - 1)
来源：学生作业帮助网 编辑：作业帮 时间：2024/10/04 00:12:16
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(X + 1) /(x - 1)
(X + 1) /(x - 1)
(X + 1) /(x - 1)
(X + 1) /(x - 1)
(X + 1) /(x - 1) <1
(X + 1) /(x - 1) -1<0
(X + 1) /(x - 1) -(x - 1)/(x - 1)<0
(X + 1-x+1) /(x - 1)<0
2/(x - 1)<0
将右边的1移到左边，则变为（x+1）/(x-1)-(x-1)/(x-1)<0 分子相减得2，分母还是x-1
(x+1)/(x-1)<1
所以(x+1)/(x-1)-1<0
所以通分得，（x+1-x+1)/(x-1)<0
所以，2/(x-1)<0
x/x+(1-x)/x-1/x
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(x+1)(x-1)(x-x+1)(x+x+1)
分解因式----（X*X-X)(X*X-X-2)+1
X(X-1)=X
1.1/x|x/(x+1)|
x/x-1[1+(x-1/x)]
x-1/x÷(x-1/x)
】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>1/1-x
x+1/x-1
(X + 1) /(x - 1)
(1+X)/(1-X)
|x+1|+|x-1|
/X-3/-/X-1/