解题方法
1 . 已知函数
.
(1)证明:当
时,
;
(2)求函数
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ff90c06f35dc418fefbbabf92ed443.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a558dc120ed2e4824f2310f224c6c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b7fed58bb6d55c924336d0933f8c64.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2 . 已知函数
.
(1)若
, 求
的最小正周期(不要证明)
(2)若
,求
的最大值;
(3)若
在
上的最大值
与
、
有关,问:
、
取何值时
最小?说明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64305ec7ccd23ef31604e47b28101840.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/601a4fe4960f18539e153430f5078b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0599c1a51457e913009d1100e8f318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f78951f3ec08d858d43e7cd8298400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
.
(1)求
的值和
的最小正周期;
(2)求证.当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fcb4c6193bb6fb0c302860eda9f9741.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb5a39449bfcd1d2448b4d675f717e8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证.当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5967cc62862986840af4dd29df4bcc41.png)
您最近一年使用:0次
2021-10-23更新
|
278次组卷
|
2卷引用:北京市第一六一中学2022届高三10月月考数学试题
21-22高一·全国·单元测试
解题方法
4 . 已知函数f(x)=2cos2
,g(x)=
2.
(1)求证:f
=g(x);
(2)求函数h(x)=f(x)-g(x)(x∈[0,π]的单调区间,并求使h(x)取到最小值时x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1020afcfd8b7de38dfd825373b86bdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6ffe5e8e3ac56ce95723c8350e542d.png)
(1)求证:f
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1200140039dc78d1e8a29e37c883aa8f.png)
(2)求函数h(x)=f(x)-g(x)(x∈[0,π]的单调区间,并求使h(x)取到最小值时x的值.
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名校
解题方法
5 . 如图,
的顶点A,B分别在x轴的非负半轴,y轴的非负半轴上,
,
.
![](https://img.xkw.com/dksih/QBM/2021/12/27/2881652916666368/2885920726016000/STEM/544701e95ceb43249c79e5d84cee0538.png?resizew=119)
(1)求点C到y轴的距离的最大值;
(2)设点M为斜边BC的中点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://img.xkw.com/dksih/QBM/2021/12/27/2881652916666368/2885920726016000/STEM/544701e95ceb43249c79e5d84cee0538.png?resizew=119)
(1)求点C到y轴的距离的最大值;
(2)设点M为斜边BC的中点,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8417983dfa06eb2858c3aa576ec1b5.png)
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名校
6 . (1)化简:
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5579454cc4f2a4895970aebea382c976.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb932955bcc5c1c9d8ac5d2dbb38f69d.png)
您最近一年使用:0次
2021-01-29更新
|
844次组卷
|
3卷引用:安徽省合肥市巢湖市2020-2021学年高一上学期期末数学试题
安徽省合肥市巢湖市2020-2021学年高一上学期期末数学试题江苏省苏州市昆山中学2020-2021学年高一下学期3月月考数学试题(已下线)专题5-5 三角函数综合大题归类(1) - 【巅峰课堂】题型归纳与培优练
名校
7 . 设函数
.
(1)求函数
的单调递减区间;
(2)
中,
,且
,证明
为直角三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6e23070046792021ea31268ecaa400.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfecde52ff2608b64849ec908d9e3e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69def215d32ff6734ad883a0ca260a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
您最近一年使用:0次
8 . 定义向量
的“相伴函数”为
,函数
的“相伴向量”为
,其中O为坐标原点,记平面内所有向量的“相伴函数”构成的集合为S.
(1)设
,求证:
;
(2)已知
且
,求其“相伴向量”的模;
(3)已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
为圆
上一点,向量
的“相伴函数”
在
处取得最大值,当点M在圆C上运动时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50633448e2f3583959333aedd008034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c6f29b2b1955715616003d51d8b77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c6f29b2b1955715616003d51d8b77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50633448e2f3583959333aedd008034.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b5cfa9838662ced4d78b6458aa90a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9848a0bb57a882e951a8812b38f70df.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06af1eee80c1971583ca553df77e49a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4967b02dcf5b76c0d5ce82417618aad7.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2753fe33b16b19630c996a2bc98739fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce769d55393c86ae6c312de5158e4b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d00da1c29aea46e36cda0f5780966bb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e0e24323fe73e5d9fc6136219306da.png)
您最近一年使用:0次
2020-01-16更新
|
1345次组卷
|
2卷引用:上海市七宝中学2017-2018学年高二上学期10月月考数学试题
名校
9 .
中,
为
的中点,
为外心,点
满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/7830e6e7-c859-4f0c-aa4c-7843b4717647.png?resizew=153)
(1)证明:
;
(2)若
,设
与
相交于点
,
关于点
对称,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb86591bf1a53380dba87fb1acb599b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/7830e6e7-c859-4f0c-aa4c-7843b4717647.png?resizew=153)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4d77ea39d864063a5d424ade3bbb31.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcadc2a2269b71c60e7b0cb0ec04ce3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7da2da104aebadf212b40dbcd41aaaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeddf13dd13f99fb75445f44f4fc29fe.png)
您最近一年使用:0次
2020-02-24更新
|
1782次组卷
|
2卷引用:浙江省温州市2019-2020学年高一上学期期末数学试题(A)
名校
10 . 设
为坐标原点,定义非零向量
,
的“相伴函数”为
,
向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57fd00cda9052ff2c07b3ff54751a9a7.png)
,
称为函数
的“相伴向量”.记平面内所有向量的“相伴函数”构成的集合为
.
(1)设函数
,求证:
;
(2)记
,
的“相伴函数”为
,若函数
,
,
与直线
有且仅有四个不同的交点,求实数
的取值范围;
(3)已知点
,
满足
,向量
的“相伴函数”
在
处取得最大值.当点
运动时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729e5e49fe4802e93526d94d47a8e35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b8cd2e8a9ae69fc0020962e444a2abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a69a16cf2aae32a6a8f814e7fbb3a64.png)
向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57fd00cda9052ff2c07b3ff54751a9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c6ecdf8ced933e8e6657196acc924f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b8cd2e8a9ae69fc0020962e444a2abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c6f29b2b1955715616003d51d8b77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f72579537688c3fce17bdc500c67a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4967b02dcf5b76c0d5ce82417618aad7.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94862c1d4c0cb6f8d88c79aec5fea94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad217e26bd3580c35998109de14cef73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f315885d6ef5e90995c5a2a52aebcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3038d4728f959a8efedc2592e4a4b5fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f486b99a92504148663e4d0fe94d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead6a3dbd03539ef5e0807be57bb1e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20ad2e9e3a61b4dac3f48df7df62d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b8cd2e8a9ae69fc0020962e444a2abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91c44df6dc6d714b4f4f041a7d8a1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d00da1c29aea46e36cda0f5780966bb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e0e24323fe73e5d9fc6136219306da.png)
您最近一年使用:0次
2019-12-28更新
|
620次组卷
|
2卷引用:江苏省南通市启东中学2019-2020学年高一上学期第一次质量检测数学试题(创新班)