名校
解题方法
1 . 为某商品设计一个“H”型商标,如图所示,“H”型商标由两竖一横三个等宽的矩形组成.设计要求“H”型商标关于点O中心对称,两个竖直矩形全等且它们的长边是横向矩形长边的2倍,点O到点A的距离为4cm.若记“H”型商标的面积为S,则S的最大值为________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
您最近一年使用:0次
2 . 对于非零向量
,定义运算“*”:
.其中
为
的夹角.有两两不共线的三个向量
下列结论不一定成立的是__________ .(只需写出序号)
①若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a90f1e7b09ade6210e2ded8598827a.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e373d1f16a3b310e6d421ed9219760.png)
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c23efb23c317682ba775a6de1695da.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd4b4b6f72e2404e467e6017f68e3520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab07bb13c3877b8c72f0e953af36ee63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d0692c60541a453ce8cc40c9ce9aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0c2e84aed645eb2278ecf9da8ff95b.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd82f21be4d996ba4f0eb5a6bc14dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a90f1e7b09ade6210e2ded8598827a.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e373d1f16a3b310e6d421ed9219760.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c23efb23c317682ba775a6de1695da.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd043658ae8d2fdc35d935d525b46d55.png)
您最近一年使用:0次
3 . 定义运算“
”满足:
为从向量
按逆时针方向到向量
的夹角
,向量
垂直于
所确定的平面,当
时,其垂直平面的方向向上;当
时,其垂直平面的方向向下,下列说法一定正确的有__________ .(填序号)
①
;②
;③
;④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/872c64b1cc0dd66a0d4f4bb437d6d50b.png)
;⑤当
时,
;⑥
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad8d792188dba9a934ff4e034e6eedd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3dfb49ad8bb91cc8a7488ff6f2b48d.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/2624a5cff11216693d7ecc7a8661c945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18020f8f5d3ec9988d05d367b9858fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c82ef71de70fda2db4b882e57bacbb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef7b23414e09377caa0d7fe2e6a5dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932413ffae6ac40f704ef9606bdc06a8.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a5dd9c18ec68a4e1af7a86abb44d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14f57826c118e5772513c03354d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17be5a6799ad26c91a8fd58448a3ce03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/872c64b1cc0dd66a0d4f4bb437d6d50b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea925583bb5b08798bf5c0f9f43aad3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b958a367fa2f08b6202a5a6ebf5e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d94b1db1042e2b0dbe7efb3a6e33190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb176d7f8f34762a45717df116878ed.png)
您最近一年使用:0次
4 . 以密位作为角的度量单位,这种度量角的单位制,叫作角的密位制.在角的密位制中,采用四个数码表示角的大小,单位名称密位二字可以省去不写.密位的写法是在百位数与十位数之间画一条短线,如
密位写成“
”,
密位写成“
”,
密位写成“
”.
周角等于
密位,写成“
”.已知某扇形中的弧的中点到弧所对的弦的距离等于弦长的
,则该扇形的圆心角用密位制表示为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e7846c207235621b3a5c4c0f59fe3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282de32ca9fdabe6730d3cc88c9baf05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7182526c544e34b50a5f620bfd61fea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45a7ef6ea332276bf289fd073ad708a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509816dcd8d22311c22c64a80e4257a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3248b3b36f1483ffe45c94461876a601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08c9960c93359947e8966afec479fb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a8b76e36783a69d14ec54af82c7df0.png)
您最近一年使用:0次
5 . 定义向量
的一种新运算:
其中
是向量
的夹角.已知
,且向量
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6a462c248f46fdbc9a7f8a5a4cf816.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea63bf068fe8c151e98953b67b8a2d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85db44a0b0930710b0e523bfb2ff4468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f42e514ebcd40e71c659e56406ac26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6a462c248f46fdbc9a7f8a5a4cf816.png)
您最近一年使用:0次
6 . 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
7 . 水车(如图1)是一种圆形灌溉工具,它是古代中国劳动人民充分利用水力发展出来的一种运转机械.根据文献记载,水车大约出现于东汉时期.水车作为中国农耕文化的重要组成部分,体现了中华民族的创造力,为水利研究史提供了见证.图2是一个水车的示意图,它的半径为2m,其中心(即圆心)O距水面1m.如果水车每60s逆时针转1圈,在水车轮边缘上取一点P,我们知道在水车匀速转动时,P点距水面的高度h(单位:m)是一个变量,它是关于时间t(单位:s)的函数.为了方便,不妨从P点位于水车与水面交点Q时开始计时
,则我们可以建立函数关系式
(其中
,
,
)来反映h随t变化的周期规律.
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c0cc64adec72bb98ecc43b55969969.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971539e0e52f44d636ff6cbf72a983bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a78daa65176ac6fa5d975a8185b261ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b9f5bab329331795ccf58e444277430.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/10/f744266e-fb0b-4e57-8839-e27e2356b2cb.png?resizew=334)
则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c0cc64adec72bb98ecc43b55969969.png)
您最近一年使用:0次
8 . “密位制”是一种度量角的方法,我国采用的“密位制”是6000密位制,即将一个圆周角分6000等份,每一等份是一个密位,则350密位的对应角的弧度数为______ .
您最近一年使用:0次
名校
9 . 两个向量
的运算“
”:
,其中
是
的夹角.若
,
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e91bcbd1029bf636acf05b906294bb9.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2fdd05fe61eef99dc9ea84b4cdc9c6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a48df05ef769e728b38b4c2739c6c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e87196bcfac6153239ec8fac42037cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e91bcbd1029bf636acf05b906294bb9.png)
您最近一年使用:0次
解题方法
10 . 已知向量
,
,定义
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ce3bcd0f2d1636cba8cc1c4f672a6f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6681bcade73fca875ac9e7506f2bf3c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f219c59d95568e37cd60207dd15e117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c17f98c23a5db2bf97661219247beee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ce3bcd0f2d1636cba8cc1c4f672a6f.png)
您最近一年使用:0次
2023-05-03更新
|
325次组卷
|
2卷引用:海南省海口市海南省农垦实验中学等2校2023届高三一模数学试题