解题方法
1 . 设二次函数
满足:(i)
的解集为
;(ii)对任意
都有
成立.数列
满足:
,
,
.
(1)求
的值;
(2)求
的解析式;
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa5c62acd210ab6df0f2af9e3241019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14835bf3f00139ccec0694d0924db795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f5256d490dda7e785900ec112e1c0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36da735ead967235150be9d7bd63c9b5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b530377e3fe56b7988935dd73d9dccd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bab468e804fd3c006053be08a24698ad.png)
您最近一年使用:0次
解题方法
2 . 已知函数
.
(1)若
是函数
的极大值点,函数
的极小值为
.
①求实数
的取值范围及
的表达式;
②记
为
的最大值,求证:
(
是自然对数的底).
(2)若
在区间
上有两个极值点
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6caa4139ae3ce1f7c9271bd072a71c17.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
②记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ef957460e2108cd4d257fc140597c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561cb11261a996c0960d626fd18f4e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0825fbec45b977025a3df012ec5963.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e78a499596d8d268faf03f37e86cf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446dcad9c82048efb3ab2ca034695b97.png)
您最近一年使用:0次
解题方法
3 . 设
,
,
,
(1)求证:
,并指出等号成立的条件;
(2)比较
与
的大小关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67e62646209850c234a3cae2a1d65d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad6da1c92d9cb2c0821727816aaad52.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ea712410365465510a0d20fa7f72d2.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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4 . 记集合
.
(1)若
,求证:
;
(2)设集合
且
,若
,
,求
的取值范围;
(3)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8edb4a35ee8fc18d21348b26bbbefd2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96f3ea0467dc6393d7c4b602175a394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119c67d2cd0e136ac325abae7cadda16.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39fb84c074fea379fbb972a6b1608fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5738a64c9562be3585ecde74732dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9230efa8ff1efbcc68807463b2e3667f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65493f5dd32e0903c633210cc05b1825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a015906d7d42da6b86a454d056b72bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d759b1ec7f4fa266275c32eb1398c26.png)
您最近一年使用:0次
名校
解题方法
5 . 已知函数
的图象在定义域
上连续不断.若存在常数
,使得对于任意的
,
恒成立,称函数
满足性质
.
(1)若
满足性质
,且
,求
的值;
(2)若
,试说明至少存在两个不等的正数
,同时使得函数
满足性质
和
.(参考数据:
)
(3)若函数
满足性质
,求证:函数
存在零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/094f977194228bed828f3507f5898934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a2c48c3896c9f07bc82434e30020fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ff5cb5a9d88ed7db2c06683c3e355.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bea0dd7e474bcd04db2544427ba0488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0feacb36911be3ca27b87449754b28d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842d905700b5635303a740bd0109ff0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5dd698ddbe275267809650dc551e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9b41127e7230a15dcdc5cae08739c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879f7ee2372a171567ae512f66216d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3ab85db456b851bb7bed23fc9a187f.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ff5cb5a9d88ed7db2c06683c3e355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2021-12-15更新
|
772次组卷
|
8卷引用:北京市海淀区2019-2020学年高一上学期期末调研数学试题
北京市海淀区2019-2020学年高一上学期期末调研数学试题(已下线)第8章 函数应用 单元综合检测(难点)(单元培优)-2021-2022学年高一数学课后培优练(苏教版2019必修第一册)广东省茂名高州市2021-2022学年高一上学期期末数学试题福建省莆田第一中学2021-2022学年高一下学期期初学科素养能力竞赛数学试题北京市海淀实验中学2021-2022学年高一下学期期中数学试题广西钦州市2022-2023学年高一上学期期末教学质量监测数学试题江西省宜春市宜丰县宜丰中学2022-2023学年高一下学期期末考试数学试题北京市日坛中学2023-2024学年高一上学期期中考试数学试题
6 . 已知关于
的一元二次方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/559299f59b89b7f033dc95f56c1a0b70.png)
(1)
时,求证:方程一定有两个实数根.
(2)有甲、乙两个不透明的布袋,甲袋中装有3个除数字外完全相同的小球,分别标有数字1,2,3,乙袋中装有4个除数字外完全相同的小球,分别标有数字
,从甲袋中随机抽取一个小球,记录标有的数字为
,从乙袋中随机抽取一个小球,记录标有的数字为
,利用列表法或者树状图,求
的值使方程
两个相等的实数根的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/559299f59b89b7f033dc95f56c1a0b70.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2371f9a64360a759b658db846aa166.png)
(2)有甲、乙两个不透明的布袋,甲袋中装有3个除数字外完全相同的小球,分别标有数字1,2,3,乙袋中装有4个除数字外完全相同的小球,分别标有数字
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14db37344529d273e36d835241d0d39.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/2c61bd0e9c2313936d4c4cdc1c8f1eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/559299f59b89b7f033dc95f56c1a0b70.png)
您最近一年使用:0次
2021-08-10更新
|
146次组卷
|
2卷引用:北京市中国人民大学附属中学2019-2020学年高一分班考试数学试题
7 . 我们知道当
时,
对一切
恒成立,学生小贤在进一步研究指数幂运算时,发现有这么一个等式
,带着好奇,他进一步对
进行深入研究.
(1)当
时,求
的值
(2)当
时,求证:
是不存在的;
(3)求证:只有一对正整数对
使得等式成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b1495c0bf168267adb8cde0bf2db22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7569cd7e9b31ad838230133b9bc8314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984a8337cb39ab508b57b2f55eeb2843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f314b28b9020d17103045663e8e51122.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a878fd5a7104a7f42770a19097d56457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)求证:只有一对正整数对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
您最近一年使用:0次
2021-10-27更新
|
271次组卷
|
5卷引用:上海市奉贤区2020-2021学年高一上学期期中数学试题
上海市奉贤区2020-2021学年高一上学期期中数学试题第6章 幂函数、指数函数、对数函数(章末测试提高卷)-2021-2022学年高一数学同步单元测试定心卷(苏教版2019必修第一册)第3章 幂、指数与对数(B卷·能力提升练)-【单元测试】2022-2023学年高一数学分层训练AB卷(沪教版2020必修第一册)(已下线)4.3.1 对数的概念(分层作业)(3种题型-【上好课】(已下线)4.3.1 对数的概念(导学案)-【上好课】
名校
解题方法
8 . 设二次函数
,其图像过点
,且与直线
有交点.
(1)求证:
;
(2)若直线
与函数
的图像从左到右依次交于 A,B,C,D四点,若线段
能构成钝角三角形,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/225705de8bb0a3e08619e73c7f0c49be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af31a8d791f28399fc13be3250136dc.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1508daa783a4587860a1578e0bb332b.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af31a8d791f28399fc13be3250136dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd713a9809d5df1de33c6f11b81eca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b467455ea6b8b7f5e6dd53110bc22060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
您最近一年使用:0次
名校
9 . 如图,
是
的中线,
是线段
上一点
不与点
重合)
交
于点
,连结
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/d373104c-f5f8-40c6-8fd2-865a29c641fa.png?resizew=494)
(1)如图1,当点
与
重合时,求证:四边形
是平行四边形;
(2)如图2,当点
不与
重合时,(1)中的结论还成立吗?请说明理由.
(3)如图3,延长
交
于点
,若
,且
.
①求
的度数;
②当
时,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe7eaf967808dad0a184eeedfa27721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63096579c886a305cd737dff3f4133ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/d373104c-f5f8-40c6-8fd2-865a29c641fa.png?resizew=494)
(1)如图1,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3a079cfdcca9acdacecbf08f9f78cc.png)
(2)如图2,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)如图3,延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24ad0a87392245e4bf5bafe26089803b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c52a15fb25eaec30869d0f264ada3326.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bab53e0cb6e6ec13764e326b98f26b6.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8865a72c77a0dd80ff3be1c6e746a0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
您最近一年使用:0次
名校
10 . (1)用反证法证明命题“存在实数x,使得sinx=x”时,“假设”的内容是:___________ .
(2)已知命题p:∀x≥1,使得
,则
p为___________ .
(2)已知命题p:∀x≥1,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bff1a588a67b0b29fbd65b78dd68543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a45a62af2453837041c28e79295415.png)
您最近一年使用:0次