组卷网>知识点选题>分类讨论法求含绝对值不等式的最值
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1 . 已知函数eqId11c594159a6c4472b34d0a52acc681d9
(1)解不等式eqId4d8d441aac56450b8ad9ae87a1bd7b27
(2)若不等式eqIdd4800f28e5284c66ad66bd2a90edffa2恒成立,求实数eqIda4be99d332154d13a4a6ed1ff6444fe7的取值范围.
2 . 已知函数eqId32a3ac2b04884af0b2cddf107046d5b5.
(1)求不等式eqId3f98b30cbd504de3818521f0f1660230的解集;
(2)若正数eqId70a27b6ddf6b478285353abb3b1f3741eqIdaea992e70d4943e49e893817eb885ed7eqId44925af6fb19413689ba5616e3647cba满足eqIdccc2fecbec7643498560898c08910aa8,求eqIdd07f67cef8f7411dab30fda9b2879491的最小值.
5 . 已知函数eqIdd314dd1130834a5fa5f74697a838bfea
(1)当eqIda08ce385279d41c789695fb651b17890时,解不等式eqId2a33b2a20dfd40f5aecfd9a0e6e7aa5e
(2)若对任意的eqIdb5706584ddc64530b68e964587fe3b9a,不等式eqId801a013614d8490e91c5d0c9b0e46b6ceqId89dc98b7195747788abc6590d70d782e恒成立,求实数eqIda4be99d332154d13a4a6ed1ff6444fe7的取值范围.
6 . 若对于任意eqIde9edd995034840cfb557ea415074294a,都存在eqIdef3921ca22ff459bbf07d162692130fb,使得eqIdef66ae79324e42899ae796f3cb830cd3,则实数eqIda4be99d332154d13a4a6ed1ff6444fe7的取值范围是__________.
填空题 | 一般(0.65) | 2021·上海高一专题练习
8 . 若关于eqIda9cd3f94eb8045438f75e9daccfa7200的不等式eqId05d81cde17694ea785f39ba5531a20fd恒成立,则实数eqIda4be99d332154d13a4a6ed1ff6444fe7的取值范围为_____
更新:2021/08/31组卷:20
填空题 | 较易(0.85) | 2021·上海
9 . 已知eqIddd584a146abb47b18640e93eef437b84比较大小:eqId57ec6f6479624b678b702c0c575dd1b5________ 2.
更新:2021/08/18组卷:9
解答题 | 较易(0.85) | 2022·浙江高三专题练习
10 . 已知函数eqId9b1dae37257a469abda8799f3f49f9c1
(1)求不等式eqId9cecdec3156a44d0bd8921f021d7a194的解集;
(2)若关于eqIda9cd3f94eb8045438f75e9daccfa7200的不等式eqIdd725be78fdaf4932a4b3d5169571b1ddeqId7dcd2312d0bf4bb1befdfcc170e45791上恒成立,求实数eqId70a27b6ddf6b478285353abb3b1f3741的取值范围.