解题方法
1 . 已知点
,则线段
的垂直平分线的一般式方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfcef50cabebb11afc0ea70791ad23a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解题方法
2 . 已知
的顶点坐标分别为
.圆
为
的外接圆.
(1)求圆
的方程;
(2)若直线
,求证:不论
为何值,直线
与圆
相交.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0a076f4d3181c344286cf83e79105f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae5275c6974e99eb1073710e1a9464d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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解题方法
3 . 设直线
与直线
的交点为
.
(1)求两直线的夹角
的大小;
(2)求过点
且平行于
的直线的一般式方程;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6358e1d29f143d9985718edabedbb538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5f69a1595ec04a16fad215f1d4e600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)求两直线的夹角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b674ba17bb29c17dd984a51e8860e47e.png)
您最近一年使用:0次
解题方法
4 . 在学习推理和证明的课堂上,王老师给出两个曲线方程
,问同学们:你想到了什么?能得到哪些结论?下列是两位同学的回答:甲:曲线
关于
对称;曲线
关于原点对称;乙:曲线
与坐标轴在第一象限围成的图形面积
;曲线
与坐标轴在第一象限围成的图形面积
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7284a400ead6e9eba02f326bc10564a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585709cb7afdaa0127f466c45e42883d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31dfce091ef8c7874d6209eef3bbb9f.png)
A.甲、乙两人都对 | B.甲、乙两人都不对; |
C.甲对,乙不对 | D.乙对,甲不对. |
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5 . 已知抛物线
的焦点为
,直线
过焦点
与该抛物线相交于
两点,
为坐标原点,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b0ba14e41e306e5633ad4bf1cdedd8.png)
A.2 | B.3 | C.-2 | D.-3 |
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解题方法
6 . 若曲线
与
恰有两个不同的交点,则实数
的取值范围是为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30268fadc181e93003913fc30b862235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfffb79b03312977edde3993ad2882d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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解题方法
7 . 已知椭圆
,双曲线
.设椭圆
两个焦点分别为
,椭圆
的离心率为
,双曲线
的离心率为
,记双曲线
的一条渐近线与椭圆
的一个交点为
,若
且
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c6162828793e697cb1ad643b287c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb27fed96fe0a3445beb873be8dd57c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ffc3f634f435d40f9caba97a66187c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6681ba848304fe48791781a6d36cd3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2427943a38dcd93c9ec9b735ffc9fe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9113004f4a1baf9f099ba50407ab93ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018f68cd8f4b0d1c5eaaf772fcc14ff3.png)
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8 . 若椭圆
与双曲线
的焦点重合,则正实数
的值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996e27bd38f73ac37970225f09a9ee95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36e858bb2b512701c65e064c14f5131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 已知函数
令
.
(1)当
时, 求函数
在
处的切线方程;
(2)若
在
上为增函数, 求
的取值范围;
(3)当
为正数且
时,
的最小值为
, 求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f8baeb1834ab5bcc0be4dee17b05e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/784ff548b42fd0f785c5c272e6c8017a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5946299ed8f8c741a82c8d920e1e206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679353e656a54993c041ebd39ec7b31b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55bf860bcfd2f07925a6b34ed4fb1cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb4d0b8dc24e72bcbaa895948a27c17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5958a0a5d445af568285f1e8dac16005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74eb8a7738402df52d4a97262b85ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
10 . 设实数
.对任意给定的实数
,都有
.
(1)当
时,求
的值;
(2)若
是整数,且满足
成立,求
的值;
(3)当m=1时, 求
的二项展开式中系数最大的项是第几项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b018c29b858933e37675637067517d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86161bdbba4973d81789c22c351d885.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ced964780e3ef77088346889a8457f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffccf6d92a926b3be8e1a6b6fe75faf.png)
(3)当m=1时, 求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9579921aed40d74915f69f6bacca253a.png)
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