设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9098af446496329331fd1f3a302feef.png)
的图象经过点
.
(1)求
的解析式,并求函数的最小正周期.
(2)若
,若
是面积为
的锐角
的内角,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9098af446496329331fd1f3a302feef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3210274e57cc0487a58b99ea274b8aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e2c47e44655b179be64d190bb2c8ef9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af1682d84ffde594d4b2037201dec432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
2011·山西晋中·一模 查看更多[1]
(已下线)2011届山西省介休市十中高三下学期第一次模拟考试数学文卷
更新时间:2016-11-30 17:56:37
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解题方法
【推荐1】已知函数
.
(1)求函数
的最小正周期;
(2)若存在![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526c6e33166cdaadce9d0226b67642c7.png)
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64989ce178c7c2def71cdfbf3da1a31.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526c6e33166cdaadce9d0226b67642c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0c633bb041305f56f1b7f72c966e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da97ac6ce374b6f1b9a851ef0391ebd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】如图,半径为1的扇形圆心角为
,点P在弧上运动,连结PA,PB,得四边形OAPB.
(1)求四边形OAPB面积的最大值;
(2)求四边形OAPB周长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/e9b77ee5-a2e2-4634-abdc-c101a9b4f7e0.png?resizew=158)
(1)求四边形OAPB面积的最大值;
(2)求四边形OAPB周长的最大值.
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适中
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【推荐1】已知在△
中,
分别是角
的对边,△
的周长为20,且
.
(1)求边
的长;
(2)若△
的面积为
,求角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8912df2011241cbe83686e3b2c18358f.png)
(1)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)若△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02715e87f6736769c96a1e404bbada5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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【推荐2】设△
的面积为
,且
.
(1)求角
的大小;
(2)若
,且角
不是最小角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a6ce8ddfb6921d0c40347064a0aaa0.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709c67a44d84977e3dddeffa98e9c298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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