1 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51231484f0236c370cfe8ef329537adb.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51231484f0236c370cfe8ef329537adb.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286b88bb7f8b8a000f8d2875e37ec9ee.png)
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2 . 某同学因兴趣爱好,自己绘制了一个迷宫图,其图纸如图所示,该同学为让迷宫图更加美观,在绘制过程中,按单位长度给迷宫图标记了刻度,该同学发现图中
三点恰好共线,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知
的外接圆
的半径为
,
的长为
周长的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c33225ac80627fe1f63ba533922bc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c28939282e349c2148a98119601b54.png)
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4 . 已知
中,
,点
在边
上且满足
交CE于点
.
;
(2)若点
为边
中点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5a6d9ef5d5519850767a72b46e8aec.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/ee2624fb557196307eff5a86c83a9ddf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4119d0e66e51ec383efb03069d88f9bf.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f6ddc36bf4b83ed58460a6dee3dbb3.png)
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5 . 已知向量
满足
,则
在
方向上的投影向量为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11042e4d0e1a076a9a5a6b2611db5256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知点
,向量
,点
是直线
上一点,满足
,则点
的坐标是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1a9821a00b71f6b7d7a76d91b3f810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fac4e2c698dfaa062de78f869f86ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2700a3103aef7c7cdb1ab54bf964639b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
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7 . 在
的内角
的对边分别为
,已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a129a157479f343aa9b1e65051913795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 在
中,角
所对的边分别为
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88f2599ca8b6b683e57a82699c8b1ebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affe71407d9c39f965ddce9da4bb6af0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea3175d50fa0b10223c179e60171209.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 如图所示,平面四边形
的对角线交点位于四边形的内部,
,
,
,
,当
变化时,对角线
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1ac2e11788860424508ea9e80cf89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212bfbd5575772ca36d6fc3e7b246e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf10d92f20501e19d25f6f4159aab89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
A.![]() | B.![]() | C.4 | D.6 |
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2024-04-13更新
|
536次组卷
|
2卷引用:福建省莆田第二中学2023-2024学年高一下学期4月阶段性检测数学试卷
名校
10 . 已知向量
,
(1)若
,求
的值及
在
方向上投影向量的坐标.
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb03f6a77335b98daa5e94b6f528d3a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0062c3b9ba49cb6001bd5c12ee1509b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c84fc4cb06a4530bdbc77f0da6e1af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5673d2c67b6f9814d34c6a31f9ddc8ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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