1 . 已知
,其中实数
满足
,
,则点
所形成的平面区域的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59ad65eac3e85b0cc48308a0212f841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec6fb9e0625b85be3103d317fbb0cca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d59a7a14d12e605fa2d7d446c18fc87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4a933066ab9571fe0fe443bb333221.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 已知
,
是不共线的两个单位向量,
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
______ ;若对任意的
,
与
都不可能垂直,则
在
上的投影为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bd8a052e56b53a66497b4b55a968a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc155e36276a2226c40a1f4ef7a0f41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97a1f528a1df0fea872ece9d26bed6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4704e724b0c70f5306f254f659039c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6433f98b702100f5fba0844361be7051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b97b295f88972ba1c7e3cefda0885d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bd8a052e56b53a66497b4b55a968a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc155e36276a2226c40a1f4ef7a0f41a.png)
您最近一年使用:0次
2019-04-27更新
|
919次组卷
|
3卷引用:【校级联考】浙江省嘉兴市第一中学、湖州中学2018-2019学年高一下学期期中考试数学试题
解题方法
3 . 在
中,
是边
上一点,且
,点列
在线段
上,且满足
,若
,则数列
的通项![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/9c290cdc4cf3d6b82581e68ecaf5c7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0fb5c4c19ac84d269620933529d592d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4d5bde36977b1c46a4f34d323057fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
解题方法
4 . 已知
,
是非零不共线的向量,设
,定义点集
,当
时,若对于任意的
,不等式
恒成立,则实数
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec64476aaca08de0808afda3618109c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b0ab2519d0fb666743993961daee47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bd7df4532b4929fe2788d4cd0a335d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c8e9be1af0f71e91fda1d26dc3183d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08aff0c39ef631dfc085ac0b40626fe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/527093b2ec760913d0dccff8a099248b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13b51dd227febc0b850efa5db57a59f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
5 .
在单位圆
上,
是两个给定的夹角为
的向量,
为单位圆上动点,设
,且设
的最大值为
,最小值为
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1509ed7a59915e48ca1b362f0b3b9876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1625e24072a8fe6c277ecfca2c62cdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5029e40c10acc7db96a8677e4282fc00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5eeaa30850a2dd1abcb46208ac8b6a2.png)
A.2 | B.![]() | C.4 | D.![]() |
您最近一年使用:0次
2016-12-03更新
|
1878次组卷
|
3卷引用:浙江省金华市金东区金华市曙光学校2022-2023学年高一下学期期中数学试题
11-12高三上·浙江绍兴·期末
6 . 已知
且
,
是钝角,若
的最小值为
,则
的最小值是____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990d9720d471e6e012422c2042457cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131ac7eb1e911c9a40e84235bf3742ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3917f44fb8b7961452324fd484008dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1d44e0603df1928f1b54a342e1dd3f7.png)
您最近一年使用:0次