解题方法
1 . 如图,在扇形
中,半径
,圆心角
,B是扇形弧上的动点,矩形
内接于扇形.其中CD在半径OQ上,记
.
![](https://img.xkw.com/dksih/QBM/2022/4/26/2966366298619904/2969174239535104/STEM/e4651aa8-17f2-482d-96dc-0aa87bc5db19.png?resizew=202)
(1)若
,求阴影部分(曲边三角形
)的面积;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161ea3eaa2e28747507c1c0e4a7b39f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07445aa3909818a3ef93bb01182f545f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3adeb57920405a9f1341fb6a21868c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcbec8352ce3dbfbf3b173045d0ba8f2.png)
![](https://img.xkw.com/dksih/QBM/2022/4/26/2966366298619904/2969174239535104/STEM/e4651aa8-17f2-482d-96dc-0aa87bc5db19.png?resizew=202)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea81da7f8471a097675421508bb5f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6760f565c694d1cdb6d7068e14526d00.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0829c882d75043711802bd289510561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
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解题方法
2 . 如图,三个全等的矩形相接,且
.
![](https://img.xkw.com/dksih/QBM/2022/4/26/2966366298619904/2969174239494144/STEM/c839ba165a62413499b58f288be4a04c.png?resizew=247)
(1)若
,求
的值;
(2)已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c800552ed04a50d869d9a982f03e4f.png)
![](https://img.xkw.com/dksih/QBM/2022/4/26/2966366298619904/2969174239494144/STEM/c839ba165a62413499b58f288be4a04c.png?resizew=247)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2dc430443bbfe43a67d5d0f8e326c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c1f914da4657eca7865982b130b299.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83b7cf45111bc79a8d438f558f138976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
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解题方法
3 . 已知
,且
.
(1)求实数
的值;
(2)求
在
上的投影向量(用坐标表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6fdb3c6142c56fce2b0a2ec7ac5a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bce88984dde88a16a29b1069c96c653.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94cd646d4b98562e40bb71700271040c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59719064db2579c7479960ff3c1051cc.png)
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4 . 已知O为坐标原点,对于函数
,称向量
为函数
的相伴特征向量,同时称函数
为向量
的相伴函数.
(1)记向量
的相伴函数为
,若当
且
时,求
的值;
(2)已知
,
,
为
的相伴特征向量,
,请问在
的图象上是否存在一点P,使得
.若存在,求出P点坐标;若不存在,说明理由.
(3)记向量
的相伴函数为
,若当
时不等式
恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c6f29b2b1955715616003d51d8b77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e9354f8346e9004bd73ae7cbbb6f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6799b234237333b0efa331d98f0374.png)
(1)记向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be0e8ef2a5d8fe872bd4ad37a6cd442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2314796f9fd52c819d357fa585327b5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54df369856047a0133a25084ec4285d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a48345d239aaf8e9ca1ff2846c08a99.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acf45a5f66394502b70bf1dd68ee40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34458dd7ae8cae1e4a4fd7dd52234032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd3fa274c7865b7a00f75bf57d083fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e1c3626b3b44b65712f21480c25dcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf88a901d1c39cf022895eec9786f01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1428037efcc8068ecc8b4cd2279568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b354aefbabbc26c70388d76919dad557.png)
(3)记向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be0e8ef2a5d8fe872bd4ad37a6cd442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fdb7ecc0b00a96bdf49f7189342bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902fb7999912440c628dab97e8bc1d76.png)
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2022-04-23更新
|
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5卷引用:江苏省宿迁市洋河如东中学2023-2024学年高一下学期学情调研一数学试题
江苏省宿迁市洋河如东中学2023-2024学年高一下学期学情调研一数学试题湖北省鄂东南省级示范高中教育教学改革联盟学校2021-2022学年高一下学期期中联考数学试题四川省成都市成都市第十二中学2022-2023学年高一下学期期中数学试题(已下线)专题22 新高考新题型第19题新定义压轴解答题归纳(9大核心考点)(讲义)重庆市南开中学校2023-2024学年高一下学期3月阶段测试数学试题
名校
解题方法
5 . 如图,设
是平面内相交成
角的两条数轴,
分别是与x轴、y轴同方向的单位向量.若向量
,则把有序数对
叫做
在斜坐标系
中的坐标.
,求
.
(2)若
,求
在
上的投影向量斜坐标.
(3)若
,
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c092d69df76faf1e2133dc96b466ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111939547e581e8bf029a241b9e9cb05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b257fe21a91d22e853b1642c9d44647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec64476aaca08de0808afda3618109c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a9e1eb4c3226489d1344321b10b7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b446995eb26255eb446d6db87efc6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ee77ca1e8ec0f06518f2dc6262afa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b821a889623ac467c40df8af7bb7305f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252c8b84033aef7b05b220257d09f67a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f48b3c7ba65b9a647b8182d7dbaa83c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2e8935b20333704fae873bf1ef5adb.png)
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2022-04-23更新
|
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6卷引用:江苏省宿迁市泗阳县实验高级中学2023-2024学年高一下学期第一次调研测试(3月)数学试题
名校
解题方法
6 . 已知函数
.
(1)求区数
在区间
上的值域;
(2)若
,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49fb574c240e4f25e9e332cbbf7fce35.png)
(1)求区数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fceba54c042e227b842c8f85628267c6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941647c1647511a05d56a58f0a21472d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0e4c57f3580ae1485d24bde049923e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b45ad27c053169c2aeeffb1f694a5a9.png)
您最近一年使用:0次
2022-04-23更新
|
940次组卷
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5卷引用:江苏省宿迁市泗阳县实验高级中学2021-2022学年高一下学期第二次质量调研数学试题
江苏省宿迁市泗阳县实验高级中学2021-2022学年高一下学期第二次质量调研数学试题浙江省稽阳联谊学校2021-2022学年高三下学期4月期中联考数学试题江苏省苏州第十中学2021-2022学年高一下学期期中数学试题(已下线)考向21 三角恒等变换(重点)(已下线)第10章:三角恒等变换 章末检测试卷-【题型分类归纳】2022-2023学年高一数学同步讲与练(苏教版2019必修第二册)
解题方法
7 . 求值:
(1)若
,
,求
的值;
(2)设
,
,且
,求
的值.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f63dc02238b087ff47e9aa5bf6759d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a077ceccea768ed3c664d38d55242fbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb47b2fb016a195bec36b559a982314b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f102439ebd1efd422f04209ecec2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b9082ee8dab6c1e4e325c9db6b9f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e21f77981ca14e82a9091f7b2571f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db796b223b35e52aa7b4114da8072f5.png)
您最近一年使用:0次
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8 . 已知
,
,
为坐标原点.
(1)若
,
,求实数
的值;
(2)若
与
的夹角为锐角,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62e4fda0429cab9db72b32109c0d9e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b9c10afcf033262946f4f874455bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bdfc984b57def5efb291d9d5a360c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd211ad9cc0a01f1d4ea9028f47c6c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b278158157e3e0b59a4eeba058b515f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67cd2404a5a0648d4c2f78060f53ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2022-04-22更新
|
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3卷引用:江苏省宿迁市泗阳县2021-2022学年高一下学期期中调研数学试题
名校
9 . 已知向量
.
(1)若
且
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83634e314df24df73ae37d25a44d20e3.png)
(2)若
与
互相垂直,求实数t的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df4401794667f9d3ad82c6731f255cc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4545e5b893e3d207a2134cf973406b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c7cc8a01b627289fe231a54463e8e3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83634e314df24df73ae37d25a44d20e3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98bda94a0686119fa7a677d95639f24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1445a714abd6ca5caef366982908d0e3.png)
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2022-04-18更新
|
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4卷引用:江苏省宿迁市泗阳县实验高级中学2021-2022学年高一下学期第二次质量调研数学试题
20-21高一·江苏·课后作业
名校
解题方法
10 . 已知
,
,
与
的夹角是60°,计算:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4244dd3d11b8c8131ffecd896c12a27c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed178d2a2173130c60a67196636acec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2faf1a9813b080bd76a29f6da5b075ba.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8958d5224cc108c1780d10473cab0ff1.png)
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2022-03-23更新
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8卷引用:江苏省宿迁市泗阳县众兴中学2020-2021学年高一下学期第一次调研测试数学试题
江苏省宿迁市泗阳县众兴中学2020-2021学年高一下学期第一次调研测试数学试题(已下线)【新教材精创】9.2.2 向量的数量积 练习(已下线)6.2.4 向量的数量积(分层练习)-2020-2021学年高一数学新教材配套练习(人教A版2019必修第二册)福建省福州市平潭县新世纪学校2020-2021学年高一下学期月考(一)数学试题河北省石家庄市二十七中2020-2021学年高一下学期第一次月考数学试题陕西省咸阳百灵学校2020-2021学年高一下学期第二次月考数学试题(已下线)6.2.4向量的数量积(导学案)-【新教材精创】 2021-2022学年高一数学同步备课 (人教A版2019 必修第二册)江苏省徐州市邳州市宿羊山高级中学2022-2023学年高一下学期第一次学情检测数学试题