问题描述:
几道解不等式
|x+1|>x
|x-1|+|x-2|=7
(X^2-2x+1)(x+1)^3(2-x)/[(X+4)(X^2-4x+5)]>=0
|x+1|>x
|x-1|+|x-2|=7
(X^2-2x+1)(x+1)^3(2-x)/[(X+4)(X^2-4x+5)]>=0
问题解答:
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