已知函数f(x)=|x+1|+2|x﹣m|
(1)当m=2时,求f(x)≤9的解集;
(2)若f(x)≤2的解集不是空集,求实数m的取值范围.
(1)当m=2时,求f(x)≤9的解集;
(2)若f(x)≤2的解集不是空集,求实数m的取值范围.
更新时间:2020-02-09 08:29:10
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【推荐1】已知函数
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【推荐2】[选修4-5:不等式选讲]
已知关于
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(1)当
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存在零点,求实数
的取值范围.
已知关于
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(2)若函数
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【推荐1】已知函数
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(1)若不等式
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【推荐2】选修4-5:不等式选讲
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