(1/x+1)+(1/x-1)+(1/x^2-2x+1)/是分号
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(1/x+1)+(1/x-1)+(1/x^2-2x+1)/是分号(1/x+1)+(1/x-1)+(1/x^2-2x+1)/是分号(1/x+1)+(1/x-1)+(1/x^2-2x+1)/是分号(1／x
(1/x+1)+(1/x-1)+(1/x^2-2x+1)/是分号
(1/x+1)+(1/x-1)+(1/x^2-2x+1)
/是分号
(1/x+1)+(1/x-1)+(1/x^2-2x+1)/是分号
(1／x+1)+(1／x-1)+(1／x^2-2x+1)
=(1／x+1)+[(x-1+1)／(x-1)^2]
=[(x^2-2x+1+x)／(x+1)(x-1)^2]
=(x^2-x+1)／(x+1)(x-1)^2
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/