名校
1 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c127fef6f5aa84512b06539c9d77ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e682f8aedfc246f44520781e77d335a4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知函数
的图象向左平移
个单位长度得到
的图象,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec27d2122104783eb0e5363724fb7e8d.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/159b8c213a2823d7996bc4f57fd12b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b6ae6ce67b1e6bacf10a5e163e6eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec27d2122104783eb0e5363724fb7e8d.png)
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3 . 若
,且
与
存在且唯一,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01abd30f678efbd01045fd39e26083ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b1d69f1959ee319ad0f189afce34613.png)
A.2 | B.4 | C.![]() | D.![]() |
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解题方法
4 . 在
中,内角
的对边分别是
,若
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/644b3f591017ea78649961ffa4fa461e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ecc97d983426abe5f7cb5a4da33c8fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afde09d82ae96f00c135732baee64776.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-13更新
|
296次组卷
|
2卷引用:福建省安溪第一中学2023-2024学年高一下学期5月份质量检测数学试题
名校
解题方法
5 . 已知
,
均为锐角,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/936d946492774753d3846d8cb77bc1c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070786b628b5573e6dbd73c252ffb010.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
6 . 设
的内角A,B,C所对的边分别为a,b,c,且有
,
(1)求角B:
(2)若AC边上的高
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ec135fb0f1d7e2422375ee204f4a13.png)
(1)求角B:
(2)若AC边上的高
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98689e6ee6b2b12b51c4a3399a5d4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d072af2280e2bd3dcf27d012e822e0.png)
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解题方法
7 . 定义非零向量
的“相伴函数”为
,向量
称为函数
的“相伴向量”(其中
为坐标原点).
(1)设
,写出函数
的相伴向量
;
(2)已知锐角
的内角
的对边分别为
记向量
的相伴函数
,若
且
,求:①
的取值范围;②
的内切圆的半径的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234eb91d6082d883d2c885ddfc629313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e2b008241352a9b72e9c83ff64de27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234eb91d6082d883d2c885ddfc629313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e2b008241352a9b72e9c83ff64de27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3004ae26894a9230d9af60275303f79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47dad543bc23960c8088a307ef5b6e67.png)
(2)已知锐角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81acfbb6774dc5acbec6094566541703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c893c2f40ff4cafbf01b42f6c35327c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c58f6e96f90e7ad2706a56871241692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解题方法
8 . 若
为锐角,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9da049c686ff81df5d6645ef51e993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08548dac66ba40225d4b92fb4792320.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-05-09更新
|
1479次组卷
|
2卷引用:福建省安溪第八中学2024届高三下学期5月份质量检测数学试题
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9 . 在
中,内角
的对边分别为
,且
.
(1)求
.
(2)若
,点
是边
上的两个动点,当
时,求
面积的取值范围.
(3)若点
是直线
上的两个动点,记
.若
恒成立,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/38e316ce37a4e6964f2872471ba6035d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1113ce8ff2b2113a466e8cdaf05dff89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2264aa0d66a9542095586afb611c048d.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9709ce2ca2e90912412c50332f6778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe8975e2f0098642933c12ac5a8ba932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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2024-04-16更新
|
1245次组卷
|
7卷引用:福建省泉州市泉州一中、泉港一中、厦外石狮分校三校联盟2023-2024学年高一下学期5月期中联考数学试题
名校
10 . 某校高一年级开展课外实践活动,数学建模课题组的学生选择测量山峰的高度.如图,在山脚
测得山顶
的仰角为
,沿倾斜角为
的斜坡向上走了90米到达
点(A,B,P,Q在同一个平面内),在B处测得山顶
的仰角为
,则山峰高
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a4c9b697e3df2b5469b71d3b5e47a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-04-11更新
|
260次组卷
|
2卷引用:福建省安溪铭选中学2023-2024学年高一下学期6月份质量检测数学试题