0＜m≤2 2/3m³+m²-1/3≤0

wdmx6060602022-10-04 11:39:541条回答

0＜m≤2 2/3m³+m²-1/3≤0
0＜m≤2
2/3m³+m²-1/3≤0

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baibaile12 共回答了16个问题 | 采纳率87.5%: 2/3m³+m²-1/3≤0
2m³+3m²-1≤0
2m³+2m²+m²-1≤0
2m²(m+1)+(m+1)(m-1)≤0
(m+1)(2m²+m-1)≤0
(m+1)²(2m-1)≤0
2m-1≤0 m≤1/2 ∵0＜m≤2 联立得
0; 1年前

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