已知函数
,求:
(I)
的最小正周期;(Ⅱ)
的最大值与最小值,以及相应的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71cb6c12eb2e6dc648ae2639180f7040.png)
(I)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
10-11高一下·吉林·期末 查看更多[1]
(已下线)2010-2011吉林一中高一下学期期末数学
更新时间:2016-11-30 22:34:26
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【推荐1】
的内角A,B,C的对边分别为a,b,c,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb3068d6a1eef87d9f2f7bbcdbf7ed.png)
(1)求角A的大小;
(2)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb3068d6a1eef87d9f2f7bbcdbf7ed.png)
(1)求角A的大小;
(2)求
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【推荐2】求函数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0314f0a83ae17250ec68d487375a72e3.png)
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【推荐1】设向量
,
,定义一种向量
.已知向量
,
,点
为函数
图象上的点,点
为
的图象上的动点,且满足
(其中
为坐标原点).
(1)求
的表达式并求它的周期;
(2)把函数
图象上各点的横坐标缩小为原来的
倍(纵坐标不变),得到函数
的图象.设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d395441828a1ad3f1f01e55e6955296.png)
,试讨论函数
在区间
内的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d8bc9326954b4ddd90f785a9641ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eece9e16e6e479a2d4c32ddbf01cb919.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2806b127563514221556e1ff06c42db6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3035934c262bc961543f128ad3c8e009.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3cb96f78ec5153e97ba299e8d18ac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)把函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d395441828a1ad3f1f01e55e6955296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0db2d9c048d6974b28b54c124e8bac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
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适中
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【推荐2】已知函数
,那么
(Ⅰ)函数的最小正周期是什么?
(Ⅱ)函数在什么区间上是增函数?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3a6e9227eb05369b16a7f81c077beb.png)
(Ⅰ)函数的最小正周期是什么?
(Ⅱ)函数在什么区间上是增函数?
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适中
(0.65)
【推荐3】已知函数
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(1)求函数
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(2)求函数
在区间
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2a559b686bcee7ba54f8a37b7c76f3.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
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【推荐1】已知函数
的图象的相邻两个对称中心的距离为
.
(1)求
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的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82df54c043d1496c6cc54f480915f41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5170e87322172ef27379adb171d4b76e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662ea443c9570b1c741da3e83008c211.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbae0d22d931ac42b565c7990764a2c1.png)
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适中
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解题方法
【推荐2】已知
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(1)试问角C能否为直角?并说明理由;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64806a629d5ac85628eaa6577c8ad4b.png)
(1)试问角C能否为直角?并说明理由;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/690388e8ca907bb4576dcb95f3863977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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【推荐3】已知向量
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac075691407fc7a2eb3fcd3dc372d2d.png)
(1)求
及![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c250094127e2b3c878d68213b60407.png)
(2)若
的最小值为
,求正实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0619985c616f370844f55d32163ae556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac075691407fc7a2eb3fcd3dc372d2d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c250094127e2b3c878d68213b60407.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb38e9bb209ba8d79cf25109815d718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8b4bbd2f9912adfc9864c0e1e76a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf5909a2b109d048bd7c7a0377a769f.png)
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适中
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【推荐1】已知函数
.
(1)
,
,求
的单调递减区间;
(2)若
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,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57e9ba6b0c4fee859110389bd408952.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc36a3810dbc58bb330461b48b82dcbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3578fd78c23d45a0f90b6deb7421ff8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f586f76a544bbceeffb0e710fd9e9f6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f1a3feca6218955446108ebad0a524.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
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适中
(0.65)
名校
解题方法
【推荐2】已知函数
.
(1)求函数
的单调递增区间;
(2)当
时,求函数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9714734c9311c1404e07a4ec3f2f7c09.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab6cb73f21b87213c576129b5a6c7a2.png)
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