解题方法
1 . 如图,在扇形
中,
,半径
,P为弧
上异于A、B的一动点,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5c21185c13eae675906dabd3593c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e3dfcd8aff269dd5aba398816490c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33e5d0dbdd0f15854f0d7dd8b53058.png)
![](https://img.xkw.com/dksih/QBM/2022/4/20/2962502880198656/2964382257733632/STEM/6f6a8d0d-132f-4953-8911-b1128d9a5407.png?resizew=132)
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名校
解题方法
2 . 一般地,
的夹角可记为
,已知
,
,
,
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daef91a6dc58061db290e3264716e0c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfe4da6f357e55927d25d9d27ea8717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95867768fc234f941ad4b616b5a77e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c488e531b759b1ea2a411a612e8678b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6f45f001b7abc8996bd8fb2e4f8a32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589e6812f48f50765fa87b4d2e3974db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c74fe2e1216725cbc11143e7d0b765d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d53f6d504fbd7e84bd250d9cc819b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
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2022-04-23更新
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433次组卷
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2卷引用:湖北省武汉市部分重点中学2021-2022学年高一下学期期中联考数学试题
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解题方法
3 . 与三角形的一边及另外两边的延长线都相切的圆,称为这个三角形的旁切圆.已知正
的中心为
,
,点
为与
边相切的旁切圆上的动点,则
的取值范围为_______ .
![](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/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab9f81d751811455a26ba95893a8c80.png)
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2022-04-20更新
|
998次组卷
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5卷引用:湖北省黄冈中学2022届高三下学期二模数学试题
名校
解题方法
4 . 已知平面向量
,
,
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bc14e300835e56202525912647554b.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ae0d7b3266f32b6a916b6237b6b838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf342e77c56e55a35bb1151bc215a3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bc14e300835e56202525912647554b.png)
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2022-04-07更新
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解题方法
5 . 已知向量
满足
与
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d4e33f4b0948b722851eded7e67246.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d194ecefc9101001d88d3cc0bc9d6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e3828a8a3a9bac85a26b89ffcc2281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d4e33f4b0948b722851eded7e67246.png)
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解题方法
6 . 已知圆O的方程为
,P是圆C:
上一点,过P作圆O的两条切线,切点分别为A、B,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f356707da7b58efc9566ffbf12956e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33e5d0dbdd0f15854f0d7dd8b53058.png)
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7 . 直线
与圆
相交于两点A,B,点
为圆心,且
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6081c3b84015ecdedc34046ebadecc40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0707232dffa97ef15df4cbd74e1517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5558ffa6dc28d437c0467c7f361d444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953ce2cc3dd6d0b091793418bd4ae500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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8 . 如图所示,半圆的直径
,
为圆心,
是半圆上不同于
、
的任意一点,若
为半径
上的动点,则
的最小值是___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4892101126142bf05cb84a781489a8b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/19e5e26d-a20b-439f-a34f-2029043da4dc.png?resizew=167)
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5卷引用:湖北省荆州中学2021-2022学年高一下学期6月月考数学试题
湖北省荆州中学2021-2022学年高一下学期6月月考数学试题(已下线)第28讲 平面向量范围与最值问题-2022年新高考数学二轮专题突破精练安徽省滁州市定远县民族中学2022-2023学年高三上学期12月月考数学试题湖南省益阳市箴言中学2021-2022学年高三上学期第三次模拟考试数学试题山东省烟台市莱州市第一中学2021-2022学年高三上学期12月月考数学试题
解题方法
9 . 已知向量
,
满足
,且向量
与
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99db28b7a5a1b437b943e7f9ad9f894.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f46957dcafea6399b187b7edc57758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99db28b7a5a1b437b943e7f9ad9f894.png)
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2021-08-01更新
|
469次组卷
|
2卷引用:湖北省黄冈市2022-2023学年高三上学期9月调研考试数学试题
名校
10 . 在
中,已知
,若点
满足
,
(
),且
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d384e419d31183fd10a3f845f5b466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7366dece62e5d429c30331ad31aaedbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c362787d039865a8e877efa6b5a8a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd9736828195f010db4e1f0a9dea7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71327eeca7c2afa2d7db6da051e19fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
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