(X-2)/(X+1)≤0
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(X-2)/(X+1)≤0(X-2)/(X+1)≤0(X-2)/(X+1)≤0根据异号相除得负有x-2>=0x+10解这两个方程组得x-2>=0x+10的解为-1
(X-2)/(X+1)≤0
(X-2)/(X+1)≤0
(X-2)/(X+1)≤0
根据异号相除得负有x-2>=0 x+10
解这两个方程组得 x-2>=0 x+10的解为 -1< x≤2
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(X-2)/(X+1)≤0
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