已知函数
,
的三个内角
的对边分别为
.
(1)求
的单调递增区间;
(2)若
求角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f79907ac3adc30b93bdddc493d140d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e90895a43331f3c40d6fb3e63caf16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
更新时间:2020-11-21 09:52:02
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解题方法
【推荐1】在
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(1)求角A的大小;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7de3ab40073435e4343c672974cc1b.png)
(1)求角A的大小;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
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【推荐3】已知
.
(1)求函数
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(2)若曲线
的对称轴只有一条落在区间
上,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca5f66c246238b0d6bd4af497189e01.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f457df0f9d14437a7f0443bb297e6ee8.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914b6ca2933416cce4a52757f4c69072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐1】已知向量
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(Ⅰ)求
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(Ⅱ)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33e1b25c8925b1f5729237f084eed51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/210782069964e7b52f012284f3e91e1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45737d27de0d48d98fddb2b622e3558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
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解题方法
【推荐2】已知向量
,向量
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.
(1)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373b2aa763a6ce5ffe9cb745d7a6f52f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65f6386dfcedb3693cf9b59f3450af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9a759338c3a3c2882907373a2e7583.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35704e5141ddeaea0f521bfb809a303e.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4f307eeb96625d5182ef86e9d0e6d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b246bfbed260da734e6c7b6e87c58438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
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【推荐1】在
中,角
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0c06c2aa2332b71ce32d764975fc84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7ad60c4acf39d1c4cab07e37ae36504.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
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(0.85)
名校
解题方法
【推荐1】已知函数
的周期为
.
(1)求
的值及函数
的单调递增区间;
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,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d432485bdc5a7e41599c67e44997ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde148dae45b4ad7896fabf22adcd90b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1ad09f353a880fa97e03749b314df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50dec5d024bf83a30ef21f52abe9fccf.png)
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解题方法
【推荐2】已知函数
的部分图象如下图所示,根据图中信息解答下列问题.
的最小正周期T;
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的单调递减区间;
(3)求函数
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c574fae18f398eb3c215d3e4493680d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
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