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1 . 如图,已知O是
内心,
,
,
,记
,
,
,则( )
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650367844327424/2651665693704192/STEM/302001c8552e4f38a7c7f97d94a84c46.png?resizew=133)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae15e5357601ddb7e303b56dbe337145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966e7702df020edd428a0ac18ae544b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2b9791632582c3acc051121f45bab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f7fef6d697d939aeb1432b9a9c198f.png)
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650367844327424/2651665693704192/STEM/302001c8552e4f38a7c7f97d94a84c46.png?resizew=133)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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2021-02-05更新
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2卷引用:浙江省丽水高中发展共同体2020-2021学年高三上学期期末联考数学试题
13-14高二下·浙江宁波·阶段练习
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2 . 已知函数
的图像与
轴的两个相邻交点的距离等于
,若将函数
的图像向左平移
个单位得到函数
的图像,则
是减函数的区间为.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105968cb877c624009f8f93a3ac41ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-04-24更新
|
1645次组卷
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11卷引用:浙江省丽水四校联考2019-2020学年高三9月阶段性考试数学试题
浙江省丽水四校联考2019-2020学年高三9月阶段性考试数学试题2017届浙江温州中学高三10月高考模拟数学试卷湖北省浠水县实验高级中学2017届高三12月测试数学(文)测题广东省阳春市第一中学2018届高三上学期第三次月考数学(理)试题宁夏石嘴山市第三中学2018届高三下学期第一次模拟考试数学(理)试题【市级联考】天津九校联考2019年高三文科数学试题【市级联考】天津市2019年4月高三年级九校联考文科数学试题智能测评与辅导[文]-三角函数的应用及三角恒等变换天津市河东区2023届高三二模数学试题(已下线)2013-2014学年浙江省余姚中学高二下学期第一次质量检测数学试卷2018年高考数学理科训练试题:专题(14) 三角函数的图象与变换
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3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ff91f0d784ebfb4772666dd6e93d15.png)
(1)求函数
图象对称中心的坐标;
(2)如果
的三边
满足
,且边
所对的角为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ff91f0d784ebfb4772666dd6e93d15.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988b7e964e313579ab8869d67d5be007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2b9f4a56eddb8729daedaa14205852.png)
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2018-12-02更新
|
604次组卷
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2卷引用:浙江省丽水四校联考2019-2020学年高三9月阶段性考试数学试题
2018高三·全国·专题练习
4 . 已知向量
则
=________ 、![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
______ ,设函数
,
取得最大值时的x的值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dcf540b6a8fda9e93d044b0ac9b050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e90e66105b313c55e4acb2120bcccc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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5 . 在
中,内角
所对的边分别为
,已知
的面积
.
(1)求
与
的值;
(2)设
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcda2cc187a41c3e9418ed352cce96ac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccce952be7f11a16214f0f409279bc13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383839a3cbbb8a97941b6a40d6d340ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
6 . 已知
,则函数
的最小正周期为__________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dac402563bfae43094315487a0d2000.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca26d7dac38b616203456afcaac690.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dac402563bfae43094315487a0d2000.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)求函数
的单调递增区间;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71d3dd3b9ff5a236b597aa97c62b3ada.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e548291696e678d958ae00b633b524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749010a27180b2516f2989a15353cf13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ff0e5c78c04beea4e773185195da30.png)
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2017-05-12更新
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1888次组卷
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8卷引用:浙江省丽水市外国语实验学校2020-2021学年高三上学期期末数学试题