名校
解题方法
1 . 已知椭圆
经过点
和
,椭圆
上三点
与原点
构成平行四边形
.
(1)求椭圆
的方程;
(2)若
四点共圆,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0ec229b08d3ec1a7bffb9eb687dac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b67f38247dea57c3167f02de51cf3f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7313c3f274e44d777817f6c6f9033c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2 . 已知函数
的最大值为2,其部分图象如图所示,则下列判断错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3080cc97928ed7cef5bd7edbb5bbeb.png)
A.![]() |
B.函数![]() |
C.若函数![]() ![]() ![]() |
D.![]() ![]() |
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3 . 椭圆
,过左焦点
的直线
交椭圆E于A、C两点,
的最大值为
,最小值为
.
(1)求椭圆E的标准方程;
(2)过
的直线
交椭圆E于B、D两点,且
,求四边形ABCD的面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9e36c5987d6730e846753e0552c7d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)求椭圆E的标准方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a23dff476ddce008f686a26be4adbef.png)
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解题方法
4 . 已知函数
.
(1)当
时,试求函数图象在点
处的切线方程;
(2)若函数
有两个极值点
、
;
(ⅰ)求a的取值范围;
(ⅱ)不等式
恒成立,试求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cdcd099fd8cc0a68212f70af3d9fedc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
(ⅰ)求a的取值范围;
(ⅱ)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1f9fa86fe5015298d7ef9f51cc31207.png)
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5 . 函数
,关于x的方程
有且只有2个解,则k的取值范围______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e99ccf67548303309f242ef7b455100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e4828f7342d67468adef4ed54fbf10.png)
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解题方法
6 . 已知函数
,
,(
且
)
(1)若
,讨论
的单调性
(2)若
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8779e5a2013c95014666edf30f695a.png)
(3)若
恒成立,求
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e349f49908801a73999320f7a49820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c773633c5cfdccc24ee6388dc11b88e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8543be878ad77b0913b41ef54c492e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8779e5a2013c95014666edf30f695a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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7 . 已知
与
的图像上恰有两对关于
轴对称的点,则
的取值范围为_____________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e203fd8fc60b9010ae52f5d0ba0378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16db42a4c86f77e3262889bede7eea95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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8 . 已知函数
,
(1)当
时,求
在点
处的切线方程;
(2)当
时,讨论函数
的单调性;
(3)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db4772b69daa1fea8f8453108b82b6e4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9945346a0127e2bd8e8034438f81676.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e15cbd7c42d7b15d7ba8d2b28ab8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b7f33f1ccb849eed3dca12eb9d203b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 有n个首项都是1的等差数列,设第m个数列的第k项为
,公差为
,并且
成等差数列.
(1)当
时,求
,
,
以及
;
(2)证明
(
,
,
是m的多项式),并求
的值;
(3)当
,
时,将数列
分组如下:
(每组数的个数构成等差数列),设前
组中所有数之和为
,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda60be3ec6a53c2186021809f87d2ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8598379ec01edc16c72c1d3fa3ce81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf101d0cde32b057c21d42a2b336764.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/599d18f02ae5e12191a37cd2d886dc93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498d357985304a737e7a01272ebbcf15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f4b25db4e5f4a3743476ae088720fb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597b1b4a90194fdb88a0a9a3022f5038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f2fa5d1e2f6118ea97b390dcfaf293.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2470082d0a6aa317030c6904f438c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615b5e9149cb77ee71a4684bfd43e98a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca4b2f545d6cfd6764ad19c7bc2c2f8.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea6578afabc23f5d7041b88c3790dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8b33cde65d8456d9a56a19f5c1a377.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463195d16c135c5aea8fc05fa74a5273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02dfd2fab2d2a804adcfce8ce36f556f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53e88f967e1e79b7fd23bc4af4ac862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb7b05a076e75ba6ca76e758a590e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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解题方法
10 . 若方程
在区间
上有解,其中
,则实数
的取值范围为______ .(结果用
表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed46f245edca7a8eeaf9758261c80039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd8308f32b892e39edd5d8014f9bfcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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