解题方法
1 . 函数
的图象过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c662603d5452071eb5239bcee22a6beb.png)
(1)求实数
的值,并判断函数的奇偶性;
(2)利用单调性定义证明
在区间
上是增函数;
(3)直接写出函数
的单调递减区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064a73b6ab2aa61e9f8ce85270ad3496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c662603d5452071eb5239bcee22a6beb.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)利用单调性定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d38ddc00d0853a4f94751c25540d505.png)
(3)直接写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
2 . 某农场要安装一个可使用
年的太阳能供电设备。使用这种供电设备后,该农场每年消耗的电费
(单位:万元)与太阳能电池板面积
(单位:平方米)之间的函数关系为
(
为常数)。已知太阳能电池板面积为
平方米时,每年消耗的电费为
万元,安装这种供电设备的工本费为
(单位:万元),记
为该农场安装这种太阳能供电设备的工本费与该农场
年消耗的电费之和。
(1)求出
的解析式;
(2)当
为多少平方米时,
取得最小值?最小值是多少万元?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4124b2f9fca4c4a6328d555f759ee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6e94f889e8de4ef5f9d0e32dd47487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28cb2626d688ceed68b90b038da4bd9f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
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3 . 函数
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b5320a6f673d6c2e70a815adaf2440.png)
(1)求
的值;
(2)证明:
为奇函数;
(3)判断函数
在
上的单调性,并加以证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81e4399d40907b871588483b90ce524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b5320a6f673d6c2e70a815adaf2440.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a4f3c025e4af65a63afa2ba3f6d08d.png)
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2023-11-04更新
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373次组卷
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2卷引用:北京市昌平区第一中学2023-2024学年高一上学期期中考试数学试题
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解题方法
4 . 命题
:
为真命题,则
可以表示为__________________ ,实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ac233afe74d28ca167b25bd848250d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
5 . 在
平面上,我们把与定点
距离之积等于
的动点的轨迹称为伯努利双纽线,
为该曲线的两个焦点.已知曲线
是一条伯努利双纽线.
(1)求曲线
的焦点
的坐标;
(2)判断曲线
上是否存在两个不同的点
、
(异于坐标原点
),使得以
为直径的圆过坐标原点
.如果存在,求点
、
坐标;如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70195f5bdcd5976be894211da96260b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8cc0b4997cae4d8aec791a1d3923314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4082eff2c5567744e33245bb36668e56.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
(2)判断曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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解题方法
6 . 如图,正方体
的棱长是
,点
为
的中点.
(1)求证:
∥平面
;
(2)求直线
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/31/cffb9f0b-7fa6-4c88-ac97-4dea427f95e0.png?resizew=168)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
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7 . 已知
,
,若
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d38a6a0c359ca025d93cbcf8caa965e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8fc2202e1373b50bb275a50abb56b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ebc856291255f2d4a6c20b982a2442.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-10-31更新
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601次组卷
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3卷引用:北京市昌平区首都师范大学附属中学昌平学校2023-2024学年高二上学期期中考试试数学试题
北京市昌平区首都师范大学附属中学昌平学校2023-2024学年高二上学期期中考试试数学试题(已下线)广东省佛山市南海区桂城中学2023-2024学年高二上学期11月月考数学试题福建省莆田第五中学2023-2024学年高二上学期期中考试数学试题
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解题方法
8 . 如图,
平面
,
.
(1)求证:
平面
;
(2)求二面角
的余弦值;
(3)若点
到平面
的距离为
求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57225b990e28b1916a5c16134668648d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec3cee66d4951ce86a9512eb3aa2f37.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/31/2e0811ca-3e63-43ef-88f7-6381637ca779.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d32e76582bf550593fdef53e081225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d682fd0344452998187cb6d48de3dd1.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3885cacdf37959876e78c2b2f43b88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac69f2863e3d27c499d4068263dcef9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1c43b1f325eb1dc283b6b8c9866f9f.png)
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9 . 已知圆
内有一点
,过点P作直线
交圆
于
两点.
(1)当直线
经过圆心时,求直线
的方程;
(2)当点
平分弦
时,求直线
的方程;
(3)当弦长
时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b65c8d0c10c9d2c669f3e6afc480b734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2007972af3341f27fbc32ce62dfce5e2.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/26edb84f8e637badd398e79a16df9588.png)
(1)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)当弦长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce395dfb7eab4d1d58a19bce2bfdaf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2023-10-29更新
|
308次组卷
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2卷引用:北京市昌平区第一中学2023-2024学年高二上学期期中考试数学试题
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10 . 数学中有许多形状优美、寓意美好的曲线,曲线G:
就是其中之一.给出下列四个结论:
①曲线G 有且仅有四条对称轴;
②曲线G上任意两点之间的距离的最大值为6;
③曲线G恰好经过9个整点(即横坐标、纵坐标均为整数的点);
④曲线G所围成的区域的面积为
.
其中,所有正确结论的序号是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6fb4a75c522f24259dccdfb0b1e6da.png)
①曲线G 有且仅有四条对称轴;
②曲线G上任意两点之间的距离的最大值为6;
③曲线G恰好经过9个整点(即横坐标、纵坐标均为整数的点);
④曲线G所围成的区域的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a2cdfc7eabd5ef3b8156c5bd214349.png)
其中,所有正确结论的序号是
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