名校
解题方法
1 . 球面三角学是研究球面三角形的边、角关系的一门学科.如图,球
的半径为
,
,
,
为球面上三点,劣弧
的弧长记为
,设
表示以
为圆心,且过
,
的圆,同理,圆
,
的劣弧
,
的弧长分别记为
,
,曲面
(阴影部分)叫做曲面三角形,若
,则称其为曲面等边三角形,线段
,
,
与曲面
围成的封闭几何体叫做球面三棱锥,记为球面
.设
,
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7874b563ba2f6954d767ef8d14942f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9569bb48ec5f56fb51930fe2fadd751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb63917915784933ee066a41d455eae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44acc0ee22dc4b7750e8be825e7c1355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcbec8352ce3dbfbf3b173045d0ba8f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9468931aa396efbdd7f50cc79f95f392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca45259311faa9f0a9cc61bc36b9a7c.png)
A.若平面![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若平面![]() ![]() ![]() |
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2024-02-23更新
|
1018次组卷
|
5卷引用:贵州省贵阳市清华中学2023-2024学年高二下学期4月月考数学试题
名校
解题方法
2 . “圆锥容球”是指圆锥形容器里放了一个球,且球与圆锥的侧面及底面均相切(即圆锥的内切球).已知某圆锥形容器的母线与底面所成的角为
,底面半径为2,则该圆锥内切球的表面积为______ .(容器壁的厚度忽略不计)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
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3 . 声强级
(单位:
)由公式
给出,其中
为声强(单位:
),不同声的声强级如下,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66dde3544b159823cb75b72e42fc639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca586d4c35ce52dec4b545cf13ee0721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18b5cb7af3ebdd687c846504fffae00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2550d3828229e7ea8308a447e20258b2.png)
![]() ![]() | 正常人能忍受最高声强![]() | 正常人能忍受最低声强![]() | 正常人平时谈话声强![]() | 某人谈话声强![]() |
![]() ![]() | 120 | 0 | ![]() | 80 |
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 如图点
分别是棱长为2的正方体
六个面的中心,以
为顶点的多面体记为八面体
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e7a32810fcb9158bfe72d69515c7b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e7a32810fcb9158bfe72d69515c7b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/00de4502-94a6-4108-9ac1-349ae88cc245.png?resizew=162)
A.四点![]() | B.八面体![]() ![]() |
C.八面体![]() ![]() | D.直线![]() ![]() ![]() |
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解题方法
5 . 定义域为
的函数
满足
,直线
:
与两坐标轴分别交于
、
两点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1411eb3c100fac3adb89fb5a362aac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f01d7456ffc46ebad4911db2868dd0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() |
B.![]() ![]() |
C.当直线![]() ![]() ![]() |
D.函数![]() ![]() |
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6 . 函数
的图象向右平移
(其中
)个单位得到曲线
,若
在
处的切线方程是
,则曲线
的一条对称轴方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a7adda5ecdb6245e9229bc047e7ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb61a448347a3f8c1f126d1c00730cc0.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/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2f4a9558e7322268b0cac11c9d9739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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7 . 圆
:
与
轴的负半轴和正半轴分别交于
两点,
是圆与
轴垂直非直径的弦,直线
与直线
交于点
,记动点
的轨迹为
.
(1)求轨迹
的方程;
(2)在平面直角坐标系中,倾斜角确定的直线称为定向直线.是否存在不过点
的定向直线
,当直线
与轨迹
交于
时,
;若存在,求直线
的一个方向向量;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)在平面直角坐标系中,倾斜角确定的直线称为定向直线.是否存在不过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c828839ec7daffe75d61c24298afe7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2023-11-24更新
|
561次组卷
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5卷引用:贵州省贵阳市2024届高三上学期期中质量监测数学试卷
贵州省贵阳市2024届高三上学期期中质量监测数学试卷河南省郑州市宇华实验学校2024届高三上学期12月月考数学试题江西省南昌市2023-2024学年高二上学期期末模拟数学试题(已下线)专题03 圆锥曲线的方程(2)(已下线)大招2 动点问题处理策略(解题大招)
解题方法
8 . 阅读材料:
在平面直角坐标系中,若点
与定点
(或
的距离和它到定直线
(或
)的距离之比是常数
,则
,化简可得
,设
,则得到方程
,所以点
的轨迹是一个椭圆,这是从另一个角度给出了椭圆的定义.这里定点
是椭圆的一个焦点,直线
称为相应于焦点
的准线;定点
是椭圆的另一个焦点,直线
称为相应于焦点
的准线.
根据椭圆的这个定义,我们可以把到焦点的距离转化为到准线的距离.若点
在椭圆
上,
是椭圆的右焦点,椭圆的离心率
,则点
到准线
的距离为
,所以
,我们把这个公式称为椭圆的焦半径公式.
结合阅读材料回答下面的问题:
已知椭圆
的右焦点为
,点
是该椭圆上第一象限的点,且
轴,若直线
是椭圆右准线方程,点
到直线
的距离为8.
(1)求点
的坐标;
(2)若点
也在椭圆
上且
的重心为
,判断
是否能构成等差数列?如果能,求出该等差数列的公差,如果不能,说明理由.
在平面直角坐标系中,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875909171f6bd13552b1c9f5dfeba53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5bb9d2204b366da605e989c4153819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6fa6caa09b0ab11cc94a79bde7eccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5f5844db83d92feb468e828a1655b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aced4212f4fc0c0c9593ffec058985a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5b85e43f107575fdf78ad669562aa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a4f7da526a18d6d40b4c4fbd63f514a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5bb9d2204b366da605e989c4153819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875909171f6bd13552b1c9f5dfeba53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6fa6caa09b0ab11cc94a79bde7eccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e55590555905eb4f57889bbd16e39a.png)
根据椭圆的这个定义,我们可以把到焦点的距离转化为到准线的距离.若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d3ab81f15fc605429b3de9854f7a8d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5bb9d2204b366da605e989c4153819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aab9c8e714f5d6cca8696ffeeda7565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30876440c1f1e76fa468e8479a254321.png)
结合阅读材料回答下面的问题:
已知椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b1da9046b4cb82135a4a1eaa528c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0c0c9767659fd07c2e0b90ad7da571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23b488f961d9fde37feb7f5c497c0d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdce330c93b2b0768c6d76d77fdd2f0d.png)
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9 . 下列运算结果正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
10 . 请阅读下列材料,并解决问题:
到一个定点
的距离和
到定直线
的距离的比是常数
,则动点的轨迹就是圆锥曲线(这个圆锥曲线的第二定义).其中定点
称为其焦点,定直线
称为其准线(其中椭圆与双曲线的准线方程为
,抛物线准线方程为
),正常数
称为其离心率.当
时,轨迹为椭圆;当
时,轨迹为抛物线;当
时,轨迹为双曲线.
(1)已知平面内的动点
到一个定点
的距离和
到定直线
的距离的比是常数
,则动点
的轨迹方程为 (直接写出结果,无需过程).
(2)在(1)所求的曲线中是否存在一点,使得该点到直线
的距离最小?最小距离是多少?
圆锥曲线的第二定义
二次曲线,即圆锥曲线,是由一平面截二次锥面得到的曲线,包括椭圆,抛物线,双曲线等.2000多年前,古希腊数学家最先开始研究二次曲线,并获得了大量的成果.古希腊数学家阿波罗尼斯采用平面切割圆锥的方法来研究二次曲线.阿波罗尼斯曾把椭圆叫“亏曲线”把双曲线叫做“超曲线”,把抛物线叫做“齐曲线”,事实上,二次曲线由很多统一的定义、统一的二级结论等等.比如:平面内的动点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.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/f430f01710597c751d0766d7bc857596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40ba597082f60b7382ccd7c8f4e6f7d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b7ac29311c13aa538f3f48cb513b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dbcaa127022fbd6b6f13345196408a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58c44592477e5cab15cd165ff9b3d78.png)
(1)已知平面内的动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db3b46f0bf8897318fb3d0114e56e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4300a7b81c82e20fe8bca7a453f8ff99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)在(1)所求的曲线中是否存在一点,使得该点到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faa97a6ae27b83f941b5c7e8350e7896.png)
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2023-12-28更新
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4卷引用:贵州省清镇市博雅实验学校2023-2024学年高二上学期第四次月考数学试题数学
贵州省清镇市博雅实验学校2023-2024学年高二上学期第四次月考数学试题数学重庆市万州二中教育集团2023-2024学年高二下学期入学质量监测数学试题(已下线)专题2 点点距离 构造函数 练(已下线)情境15 二级结论命题