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1 . 定义:如果函数
在
上存在
满足,
,
则称函数
是
上的“中值函数”.已知函数
是
上的“中值函数”,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ecf481b6b83aa59a2befd7c4bfdbf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c6a98144e0c3fde154c8736620b6ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e856b98d62833d5da433bd9f43cd865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03da2d234eeafb8b06dc29240221e8e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ecf481b6b83aa59a2befd7c4bfdbf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39000379d64b04e5a96ccb7561406587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914b6ca2933416cce4a52757f4c69072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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河北省武邑中学2017届高三下学期一模考试数学(理)试题吉林省实验中学2018届高三上学期第三次月考数学(文)试题四川省成都市双流中学2021届高三下学期三模数学(理)试题(已下线)专题8.2 创新型问题 玩转压轴题-玩转压轴题,进军满分之2021高考数学选择题填空题四川省资阳市乐至中学2022-2023学年高三下学期开学考试数学(理)试题
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2 . 设函数
,
,
.
(1)当
时,求函数
在点
处的切线方程;
(2)若函数
有两个零点,试求
的取值范围;
(3)证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27347be1fac2fb40b4688679ba2d9ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d273851101701b627a389a6e23f9205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8914269ade8c15e97352a32de9aa9c.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5dd06305dc05b26440cd21fd69b9bc.png)
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3 . 已知过抛物线
的焦点
的直线与抛物线交于
两点,且
,抛物线的准线
与
轴交于点
,
于点
,若四边形
的面积为
,则准线
的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd68a9b8708b781279d9f526f230fffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca717072d24c0e6fda2bb0d9c19b406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d878b6631b8f1f9368f6c6217167380c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7dc603317eb90974c75efec9f02b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
,
是坐标原点,
分别为其左右焦点,
,
是椭圆上一点,
的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44917f942c3fd36614f58d47b5fe1821.png)
(1)求椭圆
的方程;
(2)若直线
与椭圆
交于
两点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
(i)求证:
为定值;
(ii)求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efbe4a54a27dc48e3f52d6249bd1681.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22a3c7e465a61e9849dd223261be47c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44917f942c3fd36614f58d47b5fe1821.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
(i)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3eeae1143162b4d564f4b77e3f77cd8.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
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5 . 已知
表示大于
的最小整数,例如
,
,下列命题中正确的是
①函数
的值域是
;
②若
是等差数列,则
也是等差数列;
③若
是等比数列,则
也是等比数列;
④若
,则方程
有2013个根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728509d4c7d8a305afb7ec4580075109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e111d49c07215cf086bac317abe2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd336f5ed9e319b1dadc3f52354cd901.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2405c0d3262a1ce093f8579ee15101e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf87d9d48c3de0a5e9f1a70e51a0bef.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407fe5a5a782b4e3d2f55cee8fb50bde.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407fe5a5a782b4e3d2f55cee8fb50bde.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c358ba2210110308f09ae0169be3261d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8f9a21ad7a8c68adfe701db0a6c85e.png)
A.②④ | B.③④ | C.①③ | D.①④ |
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6 . 已知函数f(x)=(ax-1)ex,(a∈R).
(Ⅰ)讨论f(x)的单调性;
(Ⅱ)当m>n>0时,证明:men+n<nem+m.
(Ⅰ)讨论f(x)的单调性;
(Ⅱ)当m>n>0时,证明:men+n<nem+m.
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7 . 在
中,
,
,
,
是斜边
上的两个动点,且
,则
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa8cee7d2463f6f7d352e8b65f47cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae15e5357601ddb7e303b56dbe337145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6623de5abdeae42cb02348563ff103.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e5c289b8aabdbfba95c7fd1e1842f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69fab24d0d6429475d4b57072d393419.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知
,则“
”是“
”的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729f4cbf2db857ea9d9d5876c458981b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989c21816ba5a1143da799bf053a4a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7094e5d0a0ab242546a40e121bb0a3.png)
A.充分不必要条件 | B.必要不充分条件 | C.充分必要条件 | D.既不充分也不必要条件 |
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9 . 已知抛物线的焦点
到准线
的距离为
,点
与
在
的两侧,
且
,
是抛物线上的一点,
垂直
于点
且
,
分别交
,
于点
,则
与
的外接圆半径之比为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61df3af35740b12c504ec1f2341cad03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697a0ed63a0eaf8253b7db2c34066c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02c2f59ee2b4096af5351b99660aade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b285934db0cd25f729d8eb2ab4b8524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8129a90e6874cdc7c23ca4784aa9da8a.png)
A.![]() | B.![]() | C.![]() | D.2 |
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10 . 设函数
,
.
(1)求函数
的单调区间;
(2)若函数
有两个零点
,
;
(i)求满足条件的最小正整数
的值.
(ii)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdac8719fed9bb4e1753587608265d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb1161e72920a3420e0060f227842ee.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4633de9335d15d7685bdecb007a3678c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(i)求满足条件的最小正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4199839646ca3d412ea2265f91cc56.png)
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