1 . 已知
,则
成立的充要条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2f40a4c50312b5f18f179020ae1381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2 . 求满足下列条件的曲线方程:
(1)已知双曲线的焦点在x轴上,离心率为
,且经过点
;
(2)若动点P在
上移动,求点P与点
连线的中点的轨迹方程.
(1)已知双曲线的焦点在x轴上,离心率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa585b9257ed0798213a9ae9b87d291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c9524efddc807d6c9ebf37b1cf37628.png)
(2)若动点P在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2751c5819303b8e60add2356bd7c808b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203b64e2a9e4ac8bdfb1b541597f7119.png)
您最近一年使用:0次
名校
解题方法
3 . 下列命题中:
①若集合
中只有一个元素,则
;
②已知命题p:
,
,如果命题p是假命题,则实数a的取值范围是
;
③已知函数
的定义域为
,则函数
的定义域为
;
④函数
在
上单调递增;
⑤方程
的实根的个数是2.
所有正确命题的序号是______ .
①若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7871353724aae78dec4575fabf33d210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
②已知命题p:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8645952ea14b25443f411d39bdec641e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80093b2d71987418a5df6ba62cfa732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e10140ab3cdc13d710a65b2287c892b.png)
③已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899437dff017bba9f1bee755ca0c297b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07793c3c0222de60cd9430689be9ce44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2edd8edcb21bd41584daf9bb95a5c7.png)
⑤方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c825bfee48496aae1cea1068646855.png)
所有正确命题的序号是
您最近一年使用:0次
2024-03-19更新
|
447次组卷
|
3卷引用:云南省昭通市一中教研联盟2023-2024学年高一上学期期末质量检测数学试题(A卷)
名校
解题方法
4 . 如图1,在矩形
中,
,点
分别是
上一点,且
,过点
作
于点
,将
剪掉,并将四边形
沿直线
折叠,使
(如图2),连接
,取
的中点
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/685dc0e0-69df-479f-99ff-87c448ddc42e.png?resizew=329)
(1)求直线
与平面
所成角的正弦值;
(2)求平面
与平面
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7432d526df6733bf52698c7de2fe2e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c77030a95169fb58bde953211013133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74f5f49d056b9ab5020e6e454be2469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59ea68b45202ac897ee7923471ba06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ecc697b698ebb4b19b184ca6fefb83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f796b407ce00a69abb6b3d0ac8625f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a63ee0e010032cbb1ab6c0721c27523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e97fcdcfd6183b976a61ef3222c607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af34329e73cac3df0a30e60cb8883dec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/685dc0e0-69df-479f-99ff-87c448ddc42e.png?resizew=329)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e884ca9429486026caa5e2310b0e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62fd0b510920be6bc60d170c3ff3da3.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a6063e17db813d21bf05481f4c4530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62fd0b510920be6bc60d170c3ff3da3.png)
您最近一年使用:0次
2024-02-28更新
|
180次组卷
|
2卷引用:云南省昭通市水富市第一中学2023-2024学年高二下学期第一次月考(3月)数学试题
名校
5 . 已知双曲线的右焦点为
,实轴长为8,则该双曲线的标准方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd7666ed2a5d6e02fe4690594751ef79.png)
您最近一年使用:0次
6 . 已知抛物线
,过焦点
的直线
与抛物线
交于
两点(点
在第一象限),
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cf8af6e62058cc4e2d83d5da7f4c68.png)
A.![]() |
B.![]() |
C.![]() |
D.当直线![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
7 . 已知
分别为双曲线
的左、右焦点,过双曲线
右支上一点
作直线
交
轴于点
,交
轴于点
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/007fac72e804a2d3093b372e051eab77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50376118e6e3e9a43b08b194077fc9cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386f652252ffec6d721ee40c7d781e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.双曲线![]() ![]() |
B.双曲线![]() ![]() |
C.点![]() ![]() |
D.四边形![]() |
您最近一年使用:0次
名校
8 . 如图,在四棱锥
中,
平面
,底面
为正方形,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/bfadc127-02c1-494f-b74d-524aa467f8b3.png?resizew=151)
(1)求证:
平面
;
(2)若
,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/bfadc127-02c1-494f-b74d-524aa467f8b3.png?resizew=151)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca260f5f547cb9211d36ddb555fd34f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
2024-02-20更新
|
509次组卷
|
2卷引用:云南省昭通市一中教研联盟2023-2024学年高二上学期期末质量检测数学试题(A卷)
9 . 已知抛物线
,其焦点到准线的距离为
,斜率为
的直线
与
的交点为
两点,与
轴的交点为
.
(1)求抛物线
的标准方程;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df40ba57bb5819b4aaa38d514500052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c077d6707bbc50cbe9eb0a6e7cacbfc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
名校
解题方法
10 . 斜率为
的直线与椭圆
交于A,B两点,
为线段
的中点,则椭圆的离心率为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38826e5b816f595263672d0400676bb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2024-02-18更新
|
419次组卷
|
2卷引用:云南省昭通市一中教研联盟2023-2024学年高二上学期期末质量检测数学试题(B卷)