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1 . 设关于x的方程
的从小到大的第i个非负解为
,若数列
是无穷等差数列,且
在区间
中的项恰好比在区间
中的项少2项,则ω的取值集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab4aef8fc10674359b41c70424c7b696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45016247370f5b00aeb0882977abb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/583dfca240679328ffcbbe457ec5bdd8.png)
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解题方法
2 . 在锐角
中,
,它的面积为10,
,
,
分别在
、
上,且满足
,
对任意
,
恒成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345078b37bdf02f53100140507c85bde.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6168bceb8119e8e2290ccc35b6ccc0e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc57614c316ede4c0a0ab3d533e21bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721fc29059eafb153d24020dbaefee29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd59a5621e55f43dd7e78aa7cbfaffae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f370a1d4dd341e5ab1774a66c66c1204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345078b37bdf02f53100140507c85bde.png)
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3 . 对于没有重复数据的样本
、
、…、
,记这m个数的第k百分位数为
.若
不在这组数据中,且在区间
中的数据有且只有5个,则m的所有可能值组成的集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad7f66c97bfce4c00c53d86700c961b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a76ca140172ecba82a7ec84c7a9d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621649c6156ae32223bb79da9fbf959c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110f64c0aa40f7455a016edd0dbb8ea1.png)
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4 . 已知实数
,曲线
与曲线
的公共点个数为
,对于不同的
,
所有可能的值的集合为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d165046175c70690335c3c8ce97b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32648507646862a988143a7db906c1a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f6a5f23d11b3e731b289615d991246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
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解题方法
5 . 定义在
上的函数
,其图象与水平直线
的交点从左往右分别记为
.若
,则
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d65bdc820ab87b9a7909d2be591abec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bf11a2546f764640e4c9ee43cec8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ff39dd1dfc9caf911ad0d11ba21d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41386b1f8daa54e38ad2c7f11279d2a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8568ff6401d7f8fdcef70270698d76a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
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6 . 某景点的票价为5元,售票窗口只有2张5元并有足够多的门票.现有4人持一张5元,5人持一张10元来买票,则没有顾客需要等待找钱的概率为________ .(结果用最简分数表示)
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7 . 若
均为单位向量,下列结论中正确的是_______ (填写你认为所有正确结论的序号)
(1)若
且
,且
,则
的取值范围为
;
(2)若
且
,且
,则
的取值范围为
;
(3)若
且
对任意实数
恒成立,则
的最小值为
;
(4)若
且
对任意实数
恒成立,则
的最小值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2cc1f1ef9ad32eef62aefa4c3fc3d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae19a80b97d4dfd1be47844c02980d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3797ac9ea94855ed77cb9be5b4671874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8d6f122739bfe3e5182375b585870a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c73388e5a836011f59e523130b0784.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2cc1f1ef9ad32eef62aefa4c3fc3d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae19a80b97d4dfd1be47844c02980d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e29119d4f3ee3426a24700ff7b4ba3e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8d6f122739bfe3e5182375b585870a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93188fdb80dbd006ff8e940f048896a7.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960fffaf9d3cee05667705c83419380e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8891c4e0d2d98d3070164b4a48f5d692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c279eca88d292dd0573b49efae2e07f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960fffaf9d3cee05667705c83419380e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8891c4e0d2d98d3070164b4a48f5d692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2aafdbb391ae0050cef40c8d590cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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8 . 已知实数
满足:①
;②存在实数
,使得
,
,
是等差数列,
,
,
也是等差数列.则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e633d15ed77937c15180d0593fabde03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7931c14dc4e055e3d0b709b9c080b6df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68a9723a0e94b16a6019a2494f103f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02fc27f36003850ea40fb1d9cf18d462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebea760067502e24ddf3d1e541be36ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 在四面体
中,
,
,
,设四面体
与四面体
的体积分别为
、
,则
的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8c3adfb5c3cb6dd9ba688856e2dd0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90592be71b12efb676770f65d68596f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d1bb96d6663c8cdbf43ba53e1505e1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f107bd06ad6af2ff8d5aaa9ace12d9a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae00abada46919dffcfb342971dcdabd.png)
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10 . 已知
,常数
满足
,若集合
中恰有6个元素,则
的取值构成的集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/502289795280c779e530344a8bc23940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3c812b7db846898c100611e0269fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
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