名校
解题方法
1 . 已知向量
,
.
(1)若向量
与
垂直,求
的值;
(2)若向量
与
的夹角为锐角,求
的取值范围;
(3)求
和
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b8c3e086bc2e4dc0981a2c0ca3b978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b7a2a49ee653602bbb0b300113b418.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41960bbc66bdc3b28be0138f83f9de5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697e82d288df5ac7656340301e636646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41960bbc66bdc3b28be0138f83f9de5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697e82d288df5ac7656340301e636646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b91254db5ff748150f449c5cdd256c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e07c25df57a36d4f1b11d7d9fe16b8.png)
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2020-05-31更新
|
971次组卷
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3卷引用:宁夏育才中学2019-2020学年高一5月教学质量检测数学试题
名校
解题方法
2 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f95c04ce8b83fc0850a8faea9c89d6.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777dcf6506a2a453823cddf0bd903962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f95c04ce8b83fc0850a8faea9c89d6.png)
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2020-05-31更新
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2卷引用:宁夏育才中学2019-2020学年高一5月教学质量检测数学试题
名校
解题方法
3 . 将函数
的图象上所有点的横坐标伸长到原来的2倍(纵坐标不变),再将所得的图象向左平移
个单位,得到的图象对应的解析式为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2364a6df39909b091cda9dc169437b5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-31更新
|
352次组卷
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2卷引用:宁夏育才中学2019-2020学年高一5月教学质量检测数学试题
名校
解题方法
4 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5891cd9a4eaaecd731c4bf30c459bff3.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536e072eb0439a5e5b430cd55a129374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5891cd9a4eaaecd731c4bf30c459bff3.png)
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2020-05-31更新
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4卷引用:宁夏育才中学2019-2020学年高一5月教学质量检测数学试题
宁夏育才中学2019-2020学年高一5月教学质量检测数学试题(已下线)5.1-5.3+阶段巩固提高练习-2020-2021学年新教材导学导练高中数学必修第一册(人教A版)江西省永新中学2021-2022学年高二上学期开学考试数学(理)试题湖南省岳阳市平江县颐华高级中学(平江)有限公司2022-2023学年高一下学期开学考试数学试题
解题方法
5 . 已知函数
相邻两个零点之间的距离是
,若将该函数的图象向左平移
个单位得到函数
的图象,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
______ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f126d91e85d2b88939f53346741baf3b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1304ef5a006e8fcf7c0da7d114c5c8c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f126d91e85d2b88939f53346741baf3b.png)
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名校
解题方法
6 . 在平行四边形
中,
,
是
的中点,
点在边
上,且
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6700eacd559c8820a5a5631aee02d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87ef0a99a25b115e054452abff205544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b817a2139ed93dc1d762e477683fee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b63f7bb04b2ddc7c88d0363a812a22f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-05-29更新
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7卷引用:安徽省淮北市第一中学2020届高三下学期第八次月考数学(理)试题
名校
解题方法
7 . 函数
的大致图象可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368051b60bad1855c84d20dc84de01c3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:浙江省台州市第一中学2021届高三下学期4月模拟考试数学试题
8 . 向量
,向量
.若
,则实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172014fe535f3d3095bfc9cf9a51de6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f76f50c21af40dde138adf88365a02a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca94d190013e2c9699df161d18a2e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 已知
,且
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308f2fc52806de20486b103d3fffdebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd40bc638a5c0daee2629fc37f00dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaea693336501a57b74d90438cb611e7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-05-27更新
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240次组卷
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2卷引用:福建省福州市2019-2020学年高三质量检测数学(文)试题
解题方法
10 . 设
的内角
、
、
所对边的长分别是
、
、
,且
,
,
.
(Ⅰ)求
的值;
(Ⅱ)求
的值.
![](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/0a6936d370d6a238a608ca56f87198de.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/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b97bb18e5ca34d22b5e827316a122a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8904522bf844b61febddc24346f8232f.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1311f32edf13f8caee5edb03f24a7ba.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5499634a7e80a92139d0bc69037373.png)
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3卷引用:安徽省滁州市定远县育才学校2021-2022学年高三5月教学质量检测数学(理)试题
安徽省滁州市定远县育才学校2021-2022学年高三5月教学质量检测数学(理)试题2020届天津市红桥区高考一模数学试题(已下线)专题16 解三角形(解答题)—2020年高考数学母题题源解密(天津专版)