解题方法
1 . 已知实数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21473d2e97f0819254f323459d567688.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41bdcf8b1cca7789bae72964765349c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21473d2e97f0819254f323459d567688.png)
您最近一年使用:0次
名校
2 . 设
,对任意的实数
,记函数
(
表示
中的较小者).若方程
恰有5个不同的实根,则满足题意的条件可能为___________ .(填写所有符合题意的条件的序号)
①
;
②
或
;
③
;
④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911fc7eab7f260fe061957ee9b548fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0898d7174604fa223558cb25b4c78b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e133bf93b2fe08afaa8f96ce919de0f6.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1fbe82295863faba6876c7b13d05ddb.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26492a3f9e0ea6f661d177330b83de72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d86b4ad722d7b720603eba9d330fd1.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad03d15ddcafb8abe3b8ac0520a88053.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe3d09f0ec653a57568fbd7ed5fc585.png)
您最近一年使用:0次
2024-04-24更新
|
298次组卷
|
2卷引用:陕西省安康市高新中学、安康中学高新分校2023-2024学年高三阶段性测试(八)理科数学试题
解题方法
3 . 在棱长为1的正方体
中,过面对角线
的平面记为
,以下四个命题:
,使
;
②若平面
与平面
的交线为
,则存在直线
,使
;
③若平面
截正方体所得的截面为三角形,则该截面三角形面积的最大值为
;
④若平面
过点
,点
在线段
上运动,则点
到平面
的距离为
.
其中真命题的序号为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b239e234d9ae31814af54bf27b7056ba.png)
②若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.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/9d0c6947783608bd8f6dc7fdaadad2cb.png)
③若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821309f088a175c00dc0f4828334503d.png)
④若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b78c047642924fe864028c81b1f49d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
其中真命题的序号为
您最近一年使用:0次
4 . 已知抛物线
上的点
到焦点
的距离为4,过点
作直线
交抛物线于
两点,延长
交准线于点
两点在准线上的射影分别为
,若
,则
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7251452d9c6c09b409f734cc48f4d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319a01218514917e446dfc807a625ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc5313fd6c87c2a3c234f86ab8763f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f667c27bbd05601c21249695853abdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef6516358878a47560b1d9eff2d5c09.png)
您最近一年使用:0次
2024-04-08更新
|
371次组卷
|
3卷引用:陕西省安康市高新中学、安康中学高新分校2024届高三下学期4月联考模拟预测(理科)数学试题
陕西省安康市高新中学、安康中学高新分校2024届高三下学期4月联考模拟预测(理科)数学试题四川省百师联盟2024届高三冲刺卷(二)全国卷理科数学试题(已下线)专题02 圆锥曲线中的求值问题(三大题型)
名校
解题方法
5 . 已知函数
有两个极值点,则
的取值范围为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098133ee1a05fc408b160d099d2587e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-04-07更新
|
530次组卷
|
2卷引用:陕西省安康市高新中学2024年普通高等学校招生全国统一考试模拟理数试题(一)
名校
解题方法
6 . 已知对任意实数
都有
,且
,若不等式
(其中
)的解集中恰有两个整数,则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50cac4ea450895ed63c7b4699a2f1921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01bea8bf593f594c51fc7cc547482bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582c31fee5abd72714eb2adb5e251b96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d217c7b12e12e5fb67472452518859ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-04-02更新
|
298次组卷
|
2卷引用:陕西省安康市高新中学2023-2024学年高二下学期第1次月考(3月)数学试题
解题方法
7 . 若
,对
,
,则实数m的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/609fde7031b2bfbab0f57bb63c88e076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1005ef42cc8faa1dd889486e76676526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4dc23411a302aa5e4eee4f7318e88b.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
,都有
,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee33c5b878cb2e8bee32cf8dace1ad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dc0052dce596d4d10092fef5fc1e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-03-12更新
|
1074次组卷
|
6卷引用:陕西省安康市2024届高三下学期第三次质量联考理科数学试题
解题方法
9 . 已知抛物线
的准线
,直线
与抛物线
交于
,
两点,
为线段
的中点,则下列说法中正确的为_________________ .(填写所有正确说法的序号)
①若
,则以
为直径的圆与
相交;
②若
,则
(
为坐标原点);
③过点
,
分别作抛物线
的切线
,
,若
,
交于点
,则
;
④若
,则点
到直线
的距离大于等于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8603a175d1a7685208f64d4a4e8521ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48054662c2d9b0dca46f5ae482cef509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e28cb80a0d7ea39bc8f3b6b90fac5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b36445a8b9102f748e24aeca52838ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4244af644b011d8292c8533368a9c9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
③过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/904b21bba351171abdc8482a906499d8.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753c43eb11c1f1e92ff392d3a989b95b.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/6503ca085e3ca5f2ba723b0dd66e210b.png)
您最近一年使用:0次
解题方法
10 . 已知抛物线
的焦点为
,准线
,直线
过点
且与抛物线
交于
,
两点,
为坐标原点,若
,则
的面积为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48054662c2d9b0dca46f5ae482cef509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356b058d2a753793ff2eb52430194dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103efa8eeab40ce1990e3909358b2268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
您最近一年使用:0次