名校
解题方法
1 . 已知函数
,
.
(1)当
时,求证:
;
(2)当
时,
恒成立,求实数
的取值范围;
(3)已知
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b1868d9850b7103e1326eb001dfbce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9100abe06c208f6742dc75861a33989.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3e5be1796493161a4df7e28a6f6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2aa78c96db411c9e1e939ae16de78d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d062874efc06af87693c548b09fbc91.png)
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2023-11-30更新
|
429次组卷
|
3卷引用:江苏省镇江市扬中高级中学2024届高三上学期十月学情检测数学试题
2 . 已知函数
.
(1)讨论函数
在
上的单调性;
(2)当
时,
①判断函数
的零点个数,并证明.
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea8ddadb910710765fb78ca1696c10b.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41c6b9fa72109ba69163a5c6b7874a2.png)
①判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1350cb142ba647b1a96ed5d7063665.png)
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3 . 在平面直角坐标系xoy中,已知
,圆C:
与x轴交于O ,B.
(1)证明:在x轴上存在异于点A的定点
,使得对于圆C上任一点P,都有
为定值;
(2)点M为圆C上位于x轴上方的任一点,过(1)中的点
作垂直于x轴的直线l,直线OM与l交于点N,直线AN与直线MB交于点R,求证:点R在椭圆上运动.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6316e0e6da742e9b035d8f2cc91a4dd.png)
(1)证明:在x轴上存在异于点A的定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439e95540157803d4ac3cf61a49f50a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7383714dc2ac9fe164e26a4d1bbd0c.png)
(2)点M为圆C上位于x轴上方的任一点,过(1)中的点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439e95540157803d4ac3cf61a49f50a8.png)
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解题方法
4 . 已知数列
的前
项积为
,且
.
(1)求证:数列
是等差数列;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3406df6552d66166d04a3d22e2f86929.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a40442811c08c432ec613102e4502c0.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031efafb3886a33f3ac39fc85eab869d.png)
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2023-10-13更新
|
1988次组卷
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4卷引用:江苏省连云港市2023-2024学年高三上学期教学质量调研(一)数学试题
江苏省连云港市2023-2024学年高三上学期教学质量调研(一)数学试题(已下线)江苏省南通市如皋市2023-2024学年高三上学期教学质量调研(一)数学试题江苏省连云港市部分学校2023-2024学年高三上学期10月第二次学情检测数学试题江苏省南京市江宁区东山高级中学三校联考2023-2024学年高三上学期期中调研考试数学试题
5 . 如图,在四棱锥
中,侧棱
平面ABCD,底面四边形ABCD是矩形,
,点M,N分别为棱PB,PD的中点,点E在棱AD上,
.
(1)求证:直线
平面BNE;
(2)从下面①②两个条件中选取一个作为已知,证明另外一个成立.
①平面PAB与平面PCD的交线l与直线BE所成角的余弦值为
;
②二面角
的余弦值为
.
注:若选择不同的组合分别作答,则按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c2753753faf2cb9a0003aa8e3945159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be62ac0f5edb1eaebb5f491a7c30f97b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/23/2b3335a5-ab40-4ec8-8d29-3991b6423628.png?resizew=166)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac480d8d9d7821b62a603cf5cfda236.png)
(2)从下面①②两个条件中选取一个作为已知,证明另外一个成立.
①平面PAB与平面PCD的交线l与直线BE所成角的余弦值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69d166677557cadb3da32b4a7e152e3.png)
②二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f6ca91eb50bc94871c1e32afbdb2d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/743c08870d66a766fa25298adf4dbf89.png)
注:若选择不同的组合分别作答,则按第一个解答计分.
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6 . 已知数列
满足
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060c880252326cb449d8253539d92aff.png)
(1)判断数列
是否是等比数列?若是,给出证明;否则,请说明理由;
(2)若数列
的前10项和为361,记
,数列
的前n项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060c880252326cb449d8253539d92aff.png)
(1)判断数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf33b2a94eae16760d746f9b4b8dbc.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04053ecf80b3bb9179c8baab47bf8dae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc0cf1f0a00718b95a2a4fffd11dd32.png)
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2023-08-20更新
|
2550次组卷
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9卷引用:江苏省扬州市宝应县曹甸高级中学2024届高三上学期第三次月考数学试题
7 . 已知抛物线T:
,点
,过点
的直线交T于
两点,直线AP,BP与T的另一个交点分别为
.
(1)证明:
为定值;
(2)经过点P且与x轴垂直的直线与AD,BC分别交于点E,F,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56ab70e602f2e2e291df643ab209162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e0b4cce429003557b051ea0fa2f7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a977bb284c4faf6abd81a40c3f9f8b.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d27084b928447e9693838cc4722c41c.png)
(2)经过点P且与x轴垂直的直线与AD,BC分别交于点E,F,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2189887d9bc110b8a409df20ec4d827a.png)
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8 . 已知函数
.
(1)当
时,求证:
;
(2)当
时,函数
的零点从小到大依次排列,记为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6f4a302d3a9023c0a82b889f4ba918.png)
证明:(i)
;
(ii)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae244ae6f71866d3a92fcc7240438d3c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc668fb94ca4c709a3ad02a0ead75850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6f4a302d3a9023c0a82b889f4ba918.png)
证明:(i)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a15bb2ee19c12d37058fd760a885142.png)
(ii)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85839ce955f6e02b452d9eb01fd34c7.png)
您最近一年使用:0次
2023-03-25更新
|
1004次组卷
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4卷引用:江苏省南京外国语学校2023-2024学年高三上学期10月阶段练习数学试题
9 . 已知函数
和
,它们的图像分别为曲线
和
.
(1)求函数
的单调区间;
(2)证明:曲线
和
有唯一交点;
(3)设直线
与两条曲线
共有三个不同交点,并且从左到右的三个交点的横坐标依次为
,求证:
成等比数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86161d12df385eb4cfec8a8a38277fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8da208132c56cf53ce7f4d0985582c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(3)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e632de0a4a7142242b1c4310b0a6f185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
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2022-12-26更新
|
578次组卷
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3卷引用:江苏省连云港市灌南高级中学2024届高三上学期期中数学试题
10 . 在平面直角坐标系xOy中,已知圆
与抛物线
交于点M,N(异于原点O),MN恰为该圆的直径,过点E(0,2)作直线交抛物线于A,B两点,过A,B两点分别作抛物线C的切线交于点P.
(1)求证:点P的纵坐标为定值;
(2)若F是抛物线C的焦点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de31b90e560fd399072cddf77cee65a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
(1)求证:点P的纵坐标为定值;
(2)若F是抛物线C的焦点,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2257268f137854f2551a77c50068482f.png)
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