解题方法
1 . 设函数
,
为第四象限角.
(1)化简
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b33c77370a3b01b618ba6c224ee1c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b72136837fdf1c0f625ad7284c7f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de41fe0f41d4e8b9af73a10f569f4b1.png)
您最近一年使用:0次
2 . 已知向量
,
,且
.
(1)求函数
的解析式;
(2)当
,
的最大值是
,求此时函数
的最小值,并求出相应的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/140c850132b2ecb8bbc97507591a5fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac0f9eac7dfc434a68820ef361c0fcc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7aa1233d7a93113281594c41f25c7db.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa951a727b38bb328957cbe4813e171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
3 . 在长方形
中,E为边DC的中点,F为边BC上一点,且
,设
,
.
(1)试用基底
,
表示
,
,
;
(2)若G为长方形
所在平面内一点,且
,求证:
三点不能构成三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571662e11cff4b9a48a3cdf8704977d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e984585ddf28c039219afcebf229de7.png)
(1)试用基底
![](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/6d021a5c98388463d577675e58068aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c3accb1b8a5479439beff4259660e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
(2)若G为长方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b52a45ca1340c5986d7987e92f9bcc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fadb75d3985c7cf99cc8e794ae2d7b8.png)
您最近一年使用:0次
2024-04-25更新
|
304次组卷
|
2卷引用:江苏省高邮市2023-2024学年高三下学期3月学情调研测试数学试题
名校
4 . 已知函数
,其中
.
(1)若
,求
的值;
(2)已知
时,
单调递增,再从条件①、条件②、条件③中选择一个作为已知,使函数
存在,求m的最大值.
条件①:
;
条件②:
;
条件③:
的图像与直线
的一个交点的横坐标为
.
注:如果选择多个条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae86252550c04391ad8ffac66a83d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6af3e2115ce0aaf5b99ac70c4441d1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3832ff384ba485c7f2979d4096e4d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725d80fc0501e92b570651e126330c2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4a858db41e965064d70f619f2dfce9.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc579e950cb277fcbbcc6e91a0d57cfa.png)
条件③:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f3fa679bb55ded25a9b72a8e788cb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf9c2a14f31481ee2c32e0434157a4d.png)
注:如果选择多个条件分别解答,按第一个解答计分.
您最近一年使用:0次
2024-04-22更新
|
1110次组卷
|
4卷引用:河南省焦作市博爱县第一中学2024届高三下学期5月月考数学试题
河南省焦作市博爱县第一中学2024届高三下学期5月月考数学试题北京市顺义区2024届高三第二次质量监测数学试卷(已下线)专题9 考前押题大猜想41-45(已下线)专题07 一轮复习三角函数(2)--高二期末考点大串讲(人教A版2019)
解题方法
5 . 已知平行四边形
中,
,点
是线段
的中点.
(1)求
的值;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae10e3fee0ab9946735e66c9fbef7ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8bad16b7cdf8c638cd324f5be5d834f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ff0621a423e4329cab5d476663f9f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f9e8b3b2ef4653073910f498e3d4d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
解题方法
6 . (1)已知
且
及
,求
的值;
(2)已知
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4ed902544ed34cc753e0f545f1553d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc282dae4ac9132196ac5d13f63b901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a009ce821e3add1f56315dd54826307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536e072eb0439a5e5b430cd55a129374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2b73fab111d615d3042e5c9d63fed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c1f914da4657eca7865982b130b299.png)
您最近一年使用:0次
名校
7 . 如果存在实数对
使函数
,那么我们就称函数
为实数对
的“正余弦生成函数”,实数对
为函数
的“生成数对”;
(1)求函数
的“生成数对”;
(2)若实数对
的“正余弦生成函数”
在
处取最大值,其中
,求
的取值范围;
(3)已知实数对
为函数
的“生成数对”,试问:是否存在正实数
使得函数
的最大值为
?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2a70e42d715fcd501f6b864c20605f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf74536285f6264c7d3c159dea874df.png)
(2)若实数对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb2c9dbe799417ec3fba78b32a8586b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88fc13c376b1423dc2cefb3018bdc26e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e0e24323fe73e5d9fc6136219306da.png)
(3)已知实数对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf7efad425c5cf427e10a9a6405d4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee32feac65a5e9100517a68b3169f303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a231411b3afea51a86b178f16c36bfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-03-25更新
|
483次组卷
|
3卷引用:江苏省高邮市2023-2024学年高三下学期3月学情调研测试数学试题
8 . 对于函数
,若
的图象上存在关于原点对称的点,则称
为定义域上的“
函数”.
(1)试判断
,
是否为“
函数”,简要说明理由;
(2)若
是定义在区间
上的“
函数”求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(1)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab075bdf02a96fbeb8e34d45a9161ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78ead3a09ab58a63e58801974aeb1f39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b135729cc2457e5be654a34cdc958a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99662d6d4f85a87bb5d5408f4fba9b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
9 . 对于给定的正整数n,记集合
,其中元素
称为一个n维向量.特别地,
称为零向量.设
,
,
,定义加法和数乘:
,
.对一组向量
,
,…,
,若存在一组不全为零的实数
,
,…,
,使得
,则称这组向量线性相关.否则,称为线性无关.
(1)对
,判断下列各组向量是线性相关还是线性无关,并说明理由.
①
,
;
②
,
,
.
(2)已知
,
,
线性无关,判断
,
,
是线性相关还是线性无关,并说明理由.
(3)已知
个向量
,
,…,
线性相关,但其中任意
个都线性无关,证明:
①如果存在等式
(
,
,2,3,…,m),则这些系数
,
,…,
或者全为零,或者全不为零;
②如果两个等式
,
(
,
,
,2,3,…,m)同时成立,其中
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c268e3b7bce8f372d990464c87444b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2780422eefb9e85b89074a1ba2a159d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe49f7818e5ad16acee2d6465bd32167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45895410f2b24085e0b2c0ef4e3972d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/199d8b6bed52403a6f5f5427a9fd4d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c94465dc3bf780fc91c040d1a3bb8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e138e8b9bb05f0ea5b9fad817c465d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21ce8a9960521a88f436e422517acb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a40932863dcc8cb8356bbd487eaf196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43fd777be9b2e4fdfe3fbe9a7cdde79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4c00a7ff8e54eee5d229103909102a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d2dc187e5bae6ab191f2442948763ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ecd09e653f57627caa3093b66e6b75c.png)
(1)对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55be88844fc52fee28e0bd37a81a77d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a34022ff1222ec7909d44b690b2bc4e.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55be88844fc52fee28e0bd37a81a77d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a34022ff1222ec7909d44b690b2bc4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b6a62632a7b6a6cfbf8048bb87f73e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2780422eefb9e85b89074a1ba2a159d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433a8c622b44e1aa29e9989e6978dd7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce37584c2347198ce2aa9a662ae5e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcb29b663cf1fb1ff2b3c9d1a7aebf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f55a2d5150f65f9827dd0d60a7472d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5540f4fca1858710a56dbcd89c987f.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26b7acc609f1148cfa29b8b05c638ad2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a40932863dcc8cb8356bbd487eaf196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43fd777be9b2e4fdfe3fbe9a7cdde79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0c36e75691a88bd6e38e6269e69fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1e94f660b7d05de4be4b5fbd9041f4.png)
①如果存在等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae8a8ca9b95636ba10a90ad24fa041e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50ceb44b2b2d9e16bee41f43e88c2d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27628b047da341c79074ea4aa938ddc8.png)
②如果两个等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae8a8ca9b95636ba10a90ad24fa041e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b55fdee5ba9c4308c4b66f691c868f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50ceb44b2b2d9e16bee41f43e88c2d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb35f7f9c781125fa15af1a0bafd440f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c7e640eee0dfb154aa815091d1c7ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecd9175a6d8d1d75238a4b60db254846.png)
您最近一年使用:0次
名校
解题方法
10 . 平面内给出三个向量
,
,
,求解下列问题:
(1)求向量
在向量
方向上的投影向量的坐标;
(2)若向量
与向量
的夹角为锐角,求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dde9cb3c2c078d44940f226ca200762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b8583acf0b89997429dbbaa837c3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dc9f82e788085e0bb47709afd53785.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e77f6ebb0c18fbccd89b5ea11e77915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-02-23更新
|
2626次组卷
|
4卷引用:广东省深圳市深圳外国语学校2024届高三上学期第二次月考数学试题