名校
1 . 已知圆
,直线
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b2244ab18c54b0987c56bfa579e9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3be84efef3f72e863bc719738b9fadc.png)
A.直线 ![]() ![]() |
B.当![]() ![]() ![]() |
C.直线![]() ![]() |
D.若圆![]() ![]() ![]() |
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解题方法
2 . 已知抛物线
,过点
的直线
与
交于不同的两点
.当直线
的倾斜角为
时,
.
(1)求
的方程;
(2)在线段
上取异于点
的点
,且满足
,试问是否存在一条定直线,使得点
恒在这条定直线上?若存在,求出该直线;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4771434a43ef4202325593a9d6931abb.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0244675766f73552e4712660cf4cb7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a652cc046b70eca012a2121ccff9740.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa86243cf565317dedc9fee91956cab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
您最近一年使用:0次
2024-06-13更新
|
60次组卷
|
2卷引用:2024届湖南省长沙市第一中学高考最后一卷数学试题
3 . 如图,在四棱台
中,
,
,
.
平面
;
(2)若
,四棱台
的体积为
,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feefd792abfb990702d3ef1c8baec6c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c77cb2f11c66a269bbd9d63e4bb6d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd14966183389b10618cbe33fd777407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/901567f610a4e89005799f11e347166e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e5332f18038cc811f7fff449c2d99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
您最近一年使用:0次
2024-06-13更新
|
89次组卷
|
2卷引用:2024届湖南省长沙市第一中学高考最后一卷数学试题
名校
解题方法
4 . 记
的内角
的对边分别为
,已知
.
(1)若
,求
的值;
(2)若
是边
上的一点,且
平分
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e1c681b27df538bd4742f6cd8298ae.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba1f2556a588027a0bd2695ad219209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc44c6f78ace5de61086159e432862b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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解题方法
5 . 已知椭圆
的离心率为
,过
的左焦点且斜率为1的直线与
交于
两点.若
,则
的焦距为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58168edb2306922360573f6ba14e90c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2024-06-13更新
|
60次组卷
|
2卷引用:2024届湖南省长沙市第一中学高考最后一卷数学试题
名校
解题方法
6 . 已知函数
则不等式
的解集为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ae843e0ea9076c09f6086a938b1ed8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe9b78339b25066f8badbb010a05873.png)
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7 . 某校在运动会期间进行了一场“不服来战”对抗赛,由篮球专业的1名体育生组成甲组,3名非体育生的篮球爱好者组成乙组,两组进行对抗比赛.具体规则为甲组的同学连续投球3次,乙组的同学每人各投球1次.若甲组同学和乙组3名同学的命中率依次分别为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe3d121042371314bfdf37a02d57f4d2.png)
A.乙组同学恰好命中2次的概率为![]() |
B.甲组同学恰好命中2次的概率小于乙组同学恰好命中2次的概率 |
C.甲组同学命中次数的方差为![]() |
D.乙组同学命中次数的数学期望为![]() |
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8 . 已知函数
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25434fff986261b3bf487cdf2688eaea.png)
A.![]() |
B.函数![]() ![]() |
C.不等式![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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9 . 甲、乙两人比赛投篮,每人投三次,进球数多者获胜.设甲进球数为X.乙进球数为Y.已知X的分布列为
乙每次投球进球的概率都为
,设
,
“乙获胜”.
(1)当
时,请根据全概率公式
,求乙获胜的概率;
(2)当两人进球数相同时记为“平局”,设“甲、乙达成平局”的概率为
,当
取最大值时,求
的均值与方差.
X | 0 | 1 | 2 | 3 |
P | ![]() | ![]() | ![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44fed1be8b7e50f18cb90077d9fce8e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d160df768b3230fe1df4ab590912b6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9163ebe812708ee5337d62298c2e3363.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f970f380a12c843bb4a74ff34a15b2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4355a38f9cb11aeec035559c6140c1cb.png)
(2)当两人进球数相同时记为“平局”,设“甲、乙达成平局”的概率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060d9334136396f95e9dcd328486f9d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060d9334136396f95e9dcd328486f9d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
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10 . 已知数列
满足
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8512f68b6b3d3e990d2ccf52504b6d8a.png)
A.![]() | B.![]() |
C.![]() | D.数列![]() ![]() |
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