名校
解题方法
1 . 如图,在长方体
中,
,
,若
为
的中点,则以下说法中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/237635eb-0161-4699-959c-c26771d52185.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7d64fc81c857b124268609a8beb77b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/237635eb-0161-4699-959c-c26771d52185.png?resizew=163)
A.线段![]() ![]() |
B.异面直线![]() ![]() ![]() |
C.点![]() ![]() ![]() |
D.三棱锥![]() ![]() |
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2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e29282ea2e56cbb8a35cd988ad45dda.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/bdaf054a-2802-4d30-8900-0e62daf492da.png?resizew=195)
(1)用“五点法”画出函数在一个周期内的简图
(2)求函数
的单调增区间
(3)当
时,求函数
的最大值和最小值及相应x的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e29282ea2e56cbb8a35cd988ad45dda.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/bdaf054a-2802-4d30-8900-0e62daf492da.png?resizew=195)
(1)用“五点法”画出函数在一个周期内的简图
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23fb90e09994fdc6ab02ed6ba664f31f.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aedca829ec42c3f170b7272e2154681.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23fb90e09994fdc6ab02ed6ba664f31f.png)
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3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868bf036ac8e86303ecf9da160931fff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/4cbe23ad-885d-49eb-ab7f-c5899bce7837.png?resizew=242)
(1)在如图所给的平面直角坐标系中画出该函数的图象;
(2)写出函数
的单调增区间及零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868bf036ac8e86303ecf9da160931fff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/4cbe23ad-885d-49eb-ab7f-c5899bce7837.png?resizew=242)
(1)在如图所给的平面直角坐标系中画出该函数的图象;
(2)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
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4 . 双曲线
的焦点到渐近线的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a44342c2ee26a279265225982499b71.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 已知椭圆
:
过点
,且短轴长为
.
(1)求椭圆的标准方程;
(2)求椭圆
上点
到直线
:
的最短距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55328fc097211fd3ab2833485123513b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求椭圆的标准方程;
(2)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfab8f6aaf05b1db2db85b60362f3047.png)
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6 . 双曲线
的一条渐近线方程为
,则该双曲线的离心率为 ______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86bebdf5931efbdc627baa52f97392e.png)
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解题方法
7 . (1)已知等差数列
中,
,
,求
.
(2)已知数列
的前
项和为
,且
,求
和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28fb3634ef6515ebb1db5df9208a9f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6832051de5898c8540b448f73eb3795c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
(2)已知数列
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce817f902302ebdd5a599e43df77614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7da2f386b78cdf6489efaa2f5820d3e.png)
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8 . 若
,则数列
的前
项和
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4a1e8f2f405089518827f0e3f6ba536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feda926749de04fa585f73f84c568f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebe377c91f794459b1116e25750bdd1.png)
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9 . 已知
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3caed74a0f657fc5b04d43a7106cfb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c90b13f37fcd989341c7bc983024037.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 下列函数中存在零点的函数有( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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