解题方法
1 . 已知向量
,
,函数
.
(1)求
的值;
(2)求函数
的最小正周期;
(3)求函数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b052bef3c0732fe0861b78fc097f87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ea94aa846e394727ebf404791f94b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1525aee9019a25cf71dc6054ec1ce.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9799b602b8481068315eef74c72b8e19.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
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2 . 如图,在
中,
是线段
上一点,且
为线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/30/d7014a27-6337-46ed-a563-2a98fb820d4e.png?resizew=194)
(1)若
,求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8064dc4a154ba70f6fa0ea1ad443ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c577b33bf0eea7a885e062978ebe3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/30/d7014a27-6337-46ed-a563-2a98fb820d4e.png?resizew=194)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f92aef16f5f17f7613e92f34c38e82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b46de6f0b2578885138483e44df6c3e.png)
您最近一年使用:0次
名校
解题方法
3 . 设向量
,
,其中
.
(1)若
,求
的值;
(2)若
,
的夹角为锐角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79d05c78e4e03ff3a64b24f272b876b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dfed6035574522a7e14147faba4a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e463d54a146dfe8a4d1b267ed52c94f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
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2022-05-11更新
|
259次组卷
|
4卷引用:【2023】【高二下】【期中考】【366)】【高中数学】【陈秀秀收集】
(已下线)【2023】【高二下】【期中考】【366)】【高中数学】【陈秀秀收集】安徽省皖中名校2021-2022学年高一下学期期中数学试题(C卷)安徽省皖中名校2021-2022学年高一下学期期中数学试题(B卷)河南省郑州市第十一中学2023-2024学年高一下学期4月月考数学试题
名校
4 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb59e3018713020834b5e9e25e1b733f.png)
.
(1)求
;
(2)求
与
夹角的余弦值;
(3)当
时,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb59e3018713020834b5e9e25e1b733f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3962a902d26d582187e3acb22fad68b7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfda3c1e428986d28e8484858ed2f788.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ca0ca2082d1e779aeeaf38c541513c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2022-04-30更新
|
821次组卷
|
6卷引用:浙江省宁波市三锋教研联盟2022-2023学年高二上学期期中联考数学试题
解题方法
5 . 如图,在四棱锥
中,底面ABCD是边长为1的菱形,且
,侧棱
,
,M是PC的中点,设
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/e4692921-2976-4e9b-8d88-4aae70efaf9f.png?resizew=165)
(1)试用
,
,
表示向量
;
(2)求BM的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe7dbabffc55ed62994b9145a0f2e13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac265febbf99dccf51aa0a2253e61f1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44a918c7cfd942d3a53e584c26685a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368d8a829d16a657977dd964df9789e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/e4692921-2976-4e9b-8d88-4aae70efaf9f.png?resizew=165)
(1)试用
![](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/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4648d56ec5ba86c288bc22737250ba0.png)
(2)求BM的长.
您最近一年使用:0次
6 . 在
中,
,
,
,
为
的中点,
为线段
的中垂线,
为
上异于
的任意一点.
(1)求
的值;
(2)判断
的值是否为常数,若是,求出这个常数;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e576a3c5b7dbee88c6635a0b82c2c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a660138ef66fa07bc064786582caf781.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d43c710fa8b599668eed70e05299a8.png)
您最近一年使用:0次
名校
解题方法
7 . (Ⅰ)在复数范围内解方程:
;
(Ⅱ)如图,在矩形
中,
,
,
为
中点,点
在边
上,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd505c43f4791914cc43b917f88c33fe.png)
(Ⅱ)如图,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8028e690e1360d7a019d84f68f70a3e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc83830872223a61373cde204660f093.png)
![](https://img.xkw.com/dksih/QBM/2021/6/27/2751980827983872/2781103934283776/STEM/6cc561e7-a3aa-4181-af95-daa440a1e42b.png?resizew=230)
您最近一年使用:0次
2021-08-07更新
|
404次组卷
|
3卷引用:浙江省金华市东阳中学2022-2023学年高二上学期7月月考数学试题
浙江省金华市东阳中学2022-2023学年高二上学期7月月考数学试题浙江省宁波市2020-2021学年高一下学期期末数学试题(已下线)微专题01 共线问题与数量积求解策略(2)-【微专题】2022-2023学年高一数学常考点微专题提分精练(人教A版2019必修第二册)
名校
解题方法
8 . 已知圆C:(x﹣3)2+y2=1与直线m:3x﹣y+6=0,动直线l过定点A(0,1).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/d634528d-ac0e-4658-ae66-35b2ff07f8c0.png?resizew=247)
(1)若直线l与圆C相切,求直线l的方程;
(2)若直线l与圆C相交于P、Q两点,点M是PQ的中点,直线l与直线m相交于点N.探索
是否为定值,若是,求出该定值;若不是,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/d634528d-ac0e-4658-ae66-35b2ff07f8c0.png?resizew=247)
(1)若直线l与圆C相切,求直线l的方程;
(2)若直线l与圆C相交于P、Q两点,点M是PQ的中点,直线l与直线m相交于点N.探索
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd92ed9c7d216873545ea59101b6ce1b.png)
您最近一年使用:0次
2021-08-07更新
|
1457次组卷
|
20卷引用:浙江省嘉兴市第五高级中学2022-2023学年高二上学期10月检测数学试题
浙江省嘉兴市第五高级中学2022-2023学年高二上学期10月检测数学试题浙江省嘉兴市第五高级中学2023-2024学年高二上学期第一次阶段性测试数学试题江苏省海安高级中学2019-2020学年高二上学期10月月考数学试题四川省南充高级中学2020-2021学年高二上学期第一次月考数学(文)试题广东省汕头市澄海中学2020-2021学年高二上学期期中数学试题江西省吉水中学2020-2021学年高二11月月考数学(理)试题(已下线)第二章 圆与方程A卷(基础过关)-【双基双测】2021-2022学年高二数学同步单元AB卷(苏教版2019选择性必修第一册)(已下线)阶段测试一 直线与圆(提高卷)-2021-2022学年高二数学同步单元测试定心卷(苏教版2019选择性必修第一册)福建省泉州实验中学2021-2022学年高二10月月考数学试题江西省宜春市上高二中2021-2022学年高二上学期10月月考数学(理)试题河南省焦作市温县第一高级中学2021-2022学年高二上学期10月月考数学(理)试题江西省宜春市上高二中2021-2022学年高二上学期第一次月考数学(理)试题湖北省新高考联考协作体2021-2022学年高二上学期10月联考数学试题福建省莆田第一中学2021-2022学年高二上学期期中考试数学试题湖北省黄冈市蕲春县2021-2022学年高二上学期期中数学试题江苏省南京市中华中学2022-2023学年高二上学期9月学情检测数学试题(已下线)第一次月考押题卷(考试范围:第1章、第2章)(拔高卷)-【单元测试】2022-2023学年高二数学分层训练AB卷(苏教版2019选择性必修第一册)江苏省江浦高级中学(文昌校区)、秦淮中学、玄武高级中学2022-2023学年高二上学期10月学情调研数学试题江苏省南京市2022-2023学年高二上学期10月学情调研数学试题江西省宜春市2020-2021学年高一下学期期末数学试题
9 . 在平面直角坐标系
中,向量
,
,其中
.
(1)求
的值;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ffc0255378afcf40d20f4d5f9953e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66ab4cf618909ee797365d40cf2b1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eeae4e4940d654f083f1073ba872504.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85037a7822cd9642d0c08ca29d61b259.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e876342f3769bddc5a0929cecc0c4208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23449fdb57abcd762650b0559a7ad87a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次