6.已知集合A={x|0<ax+1≤5},集合B={x|-1/2<x≤2}.(1)若A⊆B,求实数a的取值范围;
6.已知集合A={x|0<ax+1≤5},集合B={x|-1/2<x≤2}.(1)若A⊆B,求实数a的取值范围;
(2)若B⊆A,求实数a的取值范围;
(3)A、B能否相等?若能,求出a的值;若不能,试说明理由
(2)若B⊆A,求实数a的取值范围;
(3)A、B能否相等?若能,求出a的值;若不能,试说明理由
数学人气:979 ℃时间:2019-10-25 06:59:07
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若a>0,A={x|-1/a
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