已知
的最大值为3,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3afddf0af09c9dfc48aa2c87c20556.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345669a1b6a90a2169b26e80b74ffcfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3afddf0af09c9dfc48aa2c87c20556.png)
23-24高三下·重庆·阶段练习 查看更多[2]
更新时间:2024-06-06 12:54:10
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【推荐1】已知定义在
上的函数
在
处取得最小值,则最小值为__________ ,此时![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e888ea14da893971e13858945bf0cd.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e6d0adcb168f843acb2f7d63a1dc3d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d68d6b9cb27e1b4153e63ec3547d329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19099ff9ce1b01be72e4535e600aeb63.png)
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【推荐2】在三角函数部分,我们研究过二倍角公式
,我们还可以用类似方式继续得到三倍角公式.根据你的研究结果解决如下问题:在锐角△ABC中,角A,B,C的对边分别为a,b,c,若
,
,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32eac4b7f177c041219fab18de973c5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66cbc9e5601178878c36c4f744bffa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef060190fdabc1b9b790b5ae60a1d04.png)
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【推荐3】若
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d61736eaba871ceff6d5ac5b5a139af.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc282dae4ac9132196ac5d13f63b901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ae955c9387d83dea2a7f092208f84e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd58cba38252ee8cd82f2d983c836d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8434a94eb67120c7da58871dd4f750ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d61736eaba871ceff6d5ac5b5a139af.png)
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【推荐2】已知
,函数
的最大值为
,则实数
的值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a05f08dbfe429dd77150e18e746428d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b77a750c8b127476bbb41e1eb289750.png)
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