2024高一下·全国·专题练习
解题方法
1 . 设向量
满足
,
与
的夹角为
,则
的最大值为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a6e85195941321bc8fdb417153a2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b714d7bdaaa6635fe254d8ade3b884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9c88190fb57e877047c8cdc3b564ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbdfc15af2c340bb425029c46bec322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9007ec6447a9428dadb4fdb7ae9bae.png)
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解题方法
2 . 在三棱锥
中,
,若该三棱锥的所有顶点均在球
的表面上,则球
的表面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2bccc2821533d3147f5309eb1104b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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3 . 设向量
满足
,
与
的夹角为
,则
的最大值为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0beb6bbf77cf0b795200f778c7532b75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b714d7bdaaa6635fe254d8ade3b884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9c88190fb57e877047c8cdc3b564ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbdfc15af2c340bb425029c46bec322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26abac73b9cb1af5c5d8e8c2dd136bbb.png)
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4 . 如图是四棱锥
的平面展开图,四边形
是矩形,
.在四棱锥
中,M为棱PB上一点(不含端点),则下列说法正确的是__________ .
的最小值为
;
②存在点M,使得
;
③四棱锥
外接球的体积为
;
④三棱锥
的体积等于三棱锥
的体积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e0a20c9616658eadb94c25e93b3052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481b196bed2a1500dee6722f1525b158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741642aa6f98d6bd11b3a4d8212d811b.png)
②存在点M,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07789d6a8259ac89144caa816aaaf47d.png)
③四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8b0a70e166de9359b4a1d0854286049.png)
④三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e682db81a82443f63a567eb29f4aa7bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c653b8894344786624fd44bfd636d6b.png)
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2卷引用:四川省峨眉市第二中学校2024届高三适应性考试暨押题数学(文)试题
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解题方法
5 . 在
中,
,点D在线段
上,
,
,
,点M是
外接圆上任意一点,则
最大值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2a2a843ec6b1973068444b19b0616.png)
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6 . 在
中,
,
,
,则其外接圆的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534f33cc16d82470cbff68beffead264.png)
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7 . 已知
的三内角
,
,
满足
,则
的面积与
外接圆的面积之比为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/a57ad4841e0eff88587b3a883a7d1a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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8 . 在
中,角A、B、C所对的边分别为a、b、c,且
,若
,则
外接圆半径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9ddb92f369de178435492044adb4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/759ee5f5ca252f6acce1aacea9d17fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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福建省莆田市第二中学2023-2024学年高一下学期期中考试数学试题新疆乌鲁木齐市第二十三中学2023-2024学年高一下学期5月月考数学试题(已下线)专题04 解三角形小题常考题型归类-期末考点大串讲(人教B版2019必修第四册)
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9 . 在△
中,
,则△
的外接圆的半径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e82263610bcbc50f724c1d4b6c36016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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10 . 在
中,已知
,
是
的外心,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd989ddfbed4a6aa18ea57734522153.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b2115f97b7956e4a69ff4958ac1ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8954ac84d5a64358d2876a62f2a439b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd989ddfbed4a6aa18ea57734522153.png)
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