名校
1 . 已知
为坐标原点,对于函数
,称向量
为函数
的伴随向量,同时称函数
为向量
的伴随函数.
(1)设函数
,试求
的伴随向量的坐标;
(2)记向量
的伴随函数为
,当
且
时,求
的值;
(3)设向量
,
的伴随函数为
,
的伴随函数为
,记函数
,求
在
上的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66655b7a6825b124ce596197bf2aa14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84dac41f87e939f6cc39f38dc59b78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06621026b3b0a6dbb5bd5b8bf68ba42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)记向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661d1a8ad817786dab892695880ef1ba.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/cfabb3b07713645ff66ccf0988599724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a48345d239aaf8e9ca1ff2846c08a99.png)
(3)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2d3ef093c334a4b053be866f1d4a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b8e5990ef4ef314941a3154457a9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a4df880ff8c0322708ca3048aa665c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45862edae199fc9a1683f8c6fb233ee3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/733b1f3ace6bd767fe4a26dc8098b8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20bc169b402b64f7c552431c86b63aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55cfcbb5c5950e18a8452b38bb17036.png)
您最近一年使用:0次
2023-05-12更新
|
522次组卷
|
4卷引用:安徽省六安市裕安区新安中学2022-2023学年高一下学期期中考试数学试题(1-10班)
2 . 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.记向量
的相伴函数为
.
(1)当
且
时,求
的值;
(2)当
时,不等式
恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376230b67ba305c3dd2fb4c8a0c761e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84dac41f87e939f6cc39f38dc59b78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffe91c3b3290e5eb048b0028b0a5686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6197fc9360bc260883f303f344dce62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d3fa686db08faac289451eb2d93e764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a48345d239aaf8e9ca1ff2846c08a99.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c37fb4bd069bc873942c8fa00f8b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a26abd0fde0e83ffcf32b5f46b073b.png)
您最近一年使用:0次
3 . 在
中,已知
,
.锐角
,
满足
.
①当
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
______ ;
②当
取最小值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2485f5507d6f020c1275d71b4a2c9677.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da34ca79dff70e12ee89de5a28673b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f86b0835b4360ba6c7f90bcf4b7490.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/9652402944c9457e7a8e12a01b283474.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa3205b1df826d63914dcb55bb3ab43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2359e991570543f3f977bc1ef877287d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2485f5507d6f020c1275d71b4a2c9677.png)
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解题方法
4 . 已知点
是
轴上到
距离和最小的点,且
,则
的值为______ (用数据作答).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bdb666d09b92d3c6e87e00e5790a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15ed1de45e354f46bfd258cc465e6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae25acf5cbde326691cb75cb68cd788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e226f35250d668d3006217046f340ed9.png)
您最近一年使用:0次
5 . 水星是离太阳最近的行星,在地球上较难观测到.当地球和水星连线与地球和太阳连线的夹角达到最大时,称水星东(西)大距,这是观测水星的最佳时机(如图1).将行星的公转视为匀速圆周运动,则研究水星大距类似如下问题:在平面直角坐标系中,点A,
分别在以坐标原点
为圆心,半径分别为1,3的圆上沿逆时针方向做匀速圆周运动,角速度分别为
,
.当
达到最大时,称A位于
的“大距点”.如图2,初始时刻A位于
,
位于以
为始边的角
的终边上.
,当A第一次位于
的“大距点”时,A的坐标为______ ;
(2)在
内,A位于
的“大距点”的次数最多有______ 次
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3551176fd3003244122a34612d90113c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c896216c135b8c568a5f0987c23947e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f9341d51c827a29a4a0b0b3dded16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c7f579d5017888a314d681fe44db8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/590e165e407098fcac9f871beb047dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf01af951cc03381ca19150c6fe5364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
名校
6 . 已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd98a332a10ebd06de960f119cfff08.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8693890cc912f4dd9531d8ae597c16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f54b0cd8ac71508d95bb905c12ca0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd98a332a10ebd06de960f119cfff08.png)
您最近一年使用:0次
2019-10-09更新
|
2385次组卷
|
6卷引用:人教A版 必杀技 第三章 三角恒等变换 3.1.2两角和与差的正弦、余弦、正切公式
名校
解题方法
7 . 已知函数
.
(1)若
为锐角,
,
,求
及
的值;
(2)函数
,若对任意
都有
恒成立,求实数
的最大值;
(3)已知
,
,求
及
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368c73c5b1fc66954165a11ebd9bba5e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b954d1f9144e173c0c5d0ad7ad9eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db73deb6fa502e49e3c873ef076fbc32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfec7685088a43a76b6047832eb06ca.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1d03f668e16e4ae8527e3ee741eaa99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34678cf07a992840399ea3bdcdc40b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928914a3d54b81e071af1b5bcf35d149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15100cab0a8f1fb3a2668fb0d20ef38f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
您最近一年使用:0次
2020-05-25更新
|
1273次组卷
|
3卷引用:江苏省无锡市天一中学2019-2020学年高一下学期期中数学试题
江苏省无锡市天一中学2019-2020学年高一下学期期中数学试题(已下线)专题20 三角函数中的压轴题(二)-【尖子生专用】2021-2022学年高一数学考点培优训练(人教A版2019必修第一册)江苏省南京师范大学附属中学江宁分校2021-2022学年高一下学期期中数学试题
名校
8 . 已知
,
为锐角,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63e88d9ce4afb1766093727c466c577.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/ee6b1670b2b446ace5bc12d7385b8e78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f036dbd538957cd9631bb162a53cf019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63e88d9ce4afb1766093727c466c577.png)
您最近一年使用:0次
2019-03-03更新
|
1633次组卷
|
3卷引用:【全国百强校】北京师范大学附属中学2018-2019学年高一上学期期末考试数学试题
名校
解题方法
9 . 已知函数
,若方程
在区间
内的解为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398c14f6d6d25397c64dec07be2eca64.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e878f061d046fc8928990de7bdd502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d3225dc94f540306b55c70d600744d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfe8e7fb253685e0e50bae0c5482314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae74c724114bfeff024dd7b79f5edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398c14f6d6d25397c64dec07be2eca64.png)
您最近一年使用:0次
2020-03-28更新
|
1106次组卷
|
2卷引用:福建省厦门一中2019-2020学年高一3月线上月考数学试题
名校
10 . 在
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c885e8032706feed854495e0f608aa04.png)
__________ ;点
是
上靠近点
的一个三等分点,记
,则当
取最大值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744d824921dbdfe961d73f8296efef84.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48100c63529bb593110ae66734b09700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c885e8032706feed854495e0f608aa04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8bdc3e03070a80146aa2cd3d5594f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744d824921dbdfe961d73f8296efef84.png)
您最近一年使用:0次
2020-10-16更新
|
1032次组卷
|
6卷引用:福建省厦门双十中学2021-2022学年高一下学期第二次月考数学试题