解题方法
1 . 已知
是定义域为R的奇函数,当
时,
.
(1)求
的解析式;
(2)判断
在
上的单调性,并用定义证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea79854761a898f4b2be21dd23e5bb29.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
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2 . 已知
,圆
.
(1)将圆
的方程化为标准方程;
(2)若圆
的半径为3,且圆
与圆
外切,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79aa1cd422c466ad51792aca6846e9b3.png)
(1)将圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7853143323fc45f29d4de50e4529866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2022-11-12更新
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3卷引用:广西桂平市浔州高级中学2022-2023学年高二上学期贵港地区统考段考数学试题
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解题方法
3 . (1)求两条平行直线
与
间的距离;
(2)求过点
且与直线
垂直的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08813338ce3976a2dd5dcef05560e795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2102891a7aeab07fe670448ceeaa166.png)
(2)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77b96fc51eb8a9d03ced254ce8b78be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7f8878d628d46bcb847f791857b650.png)
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解题方法
4 . 如图,在四棱锥
中,
底面
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/64ab5b2c-b889-4b16-8efe-3bc9e7478b89.png?resizew=122)
(1)求异面直线
与
所成角的余弦值;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a755edadca4e4fc27fd49559b8d691ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829018a6ca0aff95d89e3f7cd943274e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f146050a153946cf24ff437fe2a17c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/64ab5b2c-b889-4b16-8efe-3bc9e7478b89.png?resizew=122)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
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2022-11-09更新
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5 . 如图,菱形
的边长为2,
,E为AB的中点.将
沿DE折起,使A到达
,连接
,
,得到四棱锥
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/9257abca-364c-4f0e-99a8-cb7cc21ed349.png?resizew=284)
(1)证明:
;
(2)当二面角
在
内变化时,求直线
与平面
所成角的正弦值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be7527d873655c33ebcd1f2b14a9315c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/9257abca-364c-4f0e-99a8-cb7cc21ed349.png?resizew=284)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb50274e8907ba8ba624755c9f3462d3.png)
(2)当二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413057311afa5daa3815d4afd08dd3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b5e354bb26ff35ea03241c4fdff96b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c87014fbb5c656a4f1892dbd88f242.png)
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10卷引用:广西桂平市浔州高级中学2022-2023学年高二上学期贵港地区统考段考数学试题
广西桂平市浔州高级中学2022-2023学年高二上学期贵港地区统考段考数学试题湖南省多所学校2022-2023学年高二上学期期中联考数学试题辽宁省县级重点高中联合体2022-2023学年高二上学期期中考试数学试题山西省部分名校2022-2023学年高二上学期期中联考数学试题金太阳2022-2023学年高二上学期期中数学试题辽宁省抚顺市六校协作体2022-2023学年高三上学期期中考试数学试题辽宁省实验中学2023-2024学年高二上学期10月月考数学试题江西省南昌市铁路第一中学2023-2024学年高二上学期10月月考数学试题重庆市重点中学2023-2024学年高二上学期10月月考数学试题福建省福州市闽侯县第一中学2023-2024学年高二上学期10月月考数学试题
6 . 在平面直角坐标系
中,已知点
,点
的轨迹为
.
(1)求
的方程;
(2)过点
且倾斜角为
的直线
与
交于
两点,求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953afc6e0c3aab263871e4387bd51830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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7 . 已知半径为
的圆C的圆心在y轴的正半轴上,且直线
与圆C相切.
(1)求圆C的标准方程.
(2)若圆C的一条弦经过点
,求这条弦的最短长度.
(3)已知
,P为圆C上任意一点,试问在y轴上是否存在定点B(异于点A),使得
为定值?若存在,求点B的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a391005600bdd69c96750589f9adb048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ada2ed45e0a8329ef3faca413ce1954.png)
(1)求圆C的标准方程.
(2)若圆C的一条弦经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ed90ebf0061c8a79beed307fc1719a.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71885f023172807ad43f2c9a670aa960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42ba0afbfc0d511a7e27a69a687525f.png)
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解题方法
8 . 已知
是二次函数,且满足
,
.
(1)求
的解析式;
(2)已知
,对任意
,
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46305fedfb17a208a8b4cab7ebceddfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9461ff31fddd49e2275b88b9d3cf4222.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4f4ad0751fe0f91c12a4c775dfca23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a90fb5a4da9ac8e75972f0861fef8a6.png)
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4卷引用:广西贵港市2022-2023学年高一上学期期中教学质量检测数学试题
9 . 已知集合
.
(1)判断(1,2)和(2,1)是否是
中的元素;
(2)若集合
, 求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07cb10a71010a65eb6e092f0c76c5e2.png)
(1)判断(1,2)和(2,1)是否是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13990081570f23cd6b39a281f4d8fa63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
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解题方法
10 . 图,在正三棱柱
中,O为
与
的交点,M为
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/967cb39e-51f9-4598-8df3-d77f92111cbc.png?resizew=191)
(1)证明:
平面
;
(2)若G为线段FC上一动点,在平面
上是否存在一点N,使得
平面
恒成立?若存在,请找出点N位置并证明
平面
;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/393ebfea258a58906706888f0d6f2582.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/967cb39e-51f9-4598-8df3-d77f92111cbc.png?resizew=191)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa1211fdbcc2a4a36e24b4e6c5c920bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)若G为线段FC上一动点,在平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e6c97d975d4b04061715c41c00e1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b14cf4977ee2dac0bd5b0fca4dadc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e6c97d975d4b04061715c41c00e1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b14cf4977ee2dac0bd5b0fca4dadc3.png)
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5卷引用:广西桂平市麻垌中学2021-2022学年高一下学期期中考试数学试题
广西桂平市麻垌中学2021-2022学年高一下学期期中考试数学试题福建省龙岩市非一级达标校2021-2022学年高一下学期期中联考数学试题福建省厦门外国语学校2021-2022学年高一下学期期中考试数学试题河北省邢台市南和区第一中学2021-2022学年高一下学期第三次月考数学试题(已下线)第一章 点线面位置关系 专题一 空间平行关系的判定与证明 微点1 空间平行关系的判定与证明【培优版】