解题方法
1 . 已知
,且
,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a414d2844f3121845300ab9e84514c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf913c92060a7bad4de1ee8c04d011e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af3f72a7326aa54575b3236c4bf7be9.png)
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解题方法
2 . 如图,
是圆
的直径,
垂直于圆
所在的平面,
为圆周上不与点
重合的点,
于
,
于
,则下列结论不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c0d2cbb6ab22d5e701ab7500a4371b.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/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e267d11d17f33c2bcf3b6b1d4b55a5de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4acf14f79021287756c833a28ed500a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.平面![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.平面![]() ![]() |
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3 . 已知函数
.
(1)求函数
的最小正周期和对称中心;
(2)求函数
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f69de3ad887fd13dd3202a12db09670.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c40aeeec9aa219c0af917fd34258282.png)
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名校
4 . 设
是不同的直线,
是不同的平面,则下列说法不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() | D.若![]() ![]() ![]() |
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5 . 已知圆锥侧面积为
,且它的侧面展开图是一个半圆,则这个圆锥的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be38df65108f55bf468417e8526ba1cb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2卷引用:浙江省浙江山海共富联盟2023-2024学年高一下学期6月联考数学试题
名校
6 . 已知向量
,且
与
的夹角为
.
(1)求
和
;
(2)若向量
与
所成的角是锐角,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032fe13f2666446d08f308d23755eebc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596a3ee5d8473fc6619ea7730e13325b.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba2b0627ff70b02aa16b007dc41794dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437dc907211c5934f938d869f6b19e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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|
999次组卷
|
3卷引用:浙江省强基联盟2023-2024学年高一下学期5月期中考试数学试题
浙江省强基联盟2023-2024学年高一下学期5月期中考试数学试题河南省信阳市信阳高级中学贤岭校区2023-2024学年高一下学期6月月考数学试题(已下线)专题03 平面向量的数量积常考题型归类-期末考点大串讲(人教B版2019必修第三册)
解题方法
7 . 已知样本数据
的平均数为
,方差为
,若样本数据![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eee9c84dd8dbb40b72646fcd01008f4.png)
的平均数为
,方差为
,则平均数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ae6558e11384a40f3a338b73385ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671f43c79d612c93a6d160335e86e177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eee9c84dd8dbb40b72646fcd01008f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6cf935bfa46b4a6420a081d0abbc00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61af5b606d5ec1336abe828f44b4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d57050815a2933222083d536052e3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.1 | B.![]() | C.2 | D.![]() |
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8 . 若虚数
是关于
的实系数方程
的一个根,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec98bcde0ea979514029766fc7656aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1ba2fe89f49d46f0b2e37eccbaf22c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
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9 . 在
中,内角A,B,C所对的边分别是a,b,c,已知
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54a36173cd9b7b28e91619d715cb569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e29b822cda1ba926e96368094fa1a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
A.![]() | B.![]() | C.![]() | D.4 |
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解题方法
10 . 已知向量
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe542ffdc910cca1a45fd4262f3d8390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a400b78a2cd807e7e28157b76529bf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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