(1-1/1-x)*(1/x²-1)求解,给过程,谢谢!
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(1-1/1-x)*(1/x²-1)求解,给过程,
解,得:
==[1-1/(1-x)]*1/[(x+1)(x-1)]
==[1+1/(x-1)]*1/[(x+1)(x-1)]
==[x/(x-1)]*1/[(x+1)(x-1)]
==x/[(x-1)^2(x+1)]
解,得:
==[1-1/(1-x)]*1/[(x+1)(x-1)]
==[1+1/(x-1)]*1/[(x+1)(x-1)]
==[x/(x-1)]*1/[(x+1)(x-1)]
==x/[(x-1)^2(x+1)]
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