已知函数
的部分图象如图所示,若
在区间
上单调递增,则实数a的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aff50a9fb5697a4b1898094eeb7fed9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4505d31e7f3823feb1ddc8bc8bef7b62.png)
![](https://img.xkw.com/dksih/QBM/2020/2/24/2405974316130304/2407852513968128/STEM/b26bea4f-e560-41c2-b379-c7d09a3b07ef.png)
更新时间:2020-02-27 08:11:23
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【知识点】 正、余弦型三角函数图象的应用解读
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适中
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【推荐1】将函数
的图象先向左平移
个单位长度,再把所得函数图象的横坐标变为原来的
倍,纵坐标不变,得到函数
的图象,若
在
上没有零点,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b5946015cf600a3479b64ea43aab03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b2c557445881f68c6a8c67b7ae5b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9900dabbc39f036c52a09a4e7e49626b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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适中
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【推荐2】(2017-2018学年江苏省南京市多校高三上学期第一次段考)函数
(
是常数,
)的部分图象如图所示,则
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1d29eeb9b4561d7b6718523dd9c3d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f85b39597335a4473a7fb9d863b0e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15edc002f246598d3d57703dec2c8ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf952bca949599849857ecbd6318a7aa.png)
![](https://img.xkw.com/dksih/QBM/2018/6/15/1967880490516480/1968752964091904/STEM/fd640f80ab9642bc9da09950190cb51f.png?resizew=172)
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