已知函数
的部分图像如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/29/df932c94-24cd-4025-bd86-7639ea3906cf.png?resizew=174)
(1)求
的解析式;
(2)若函数
在
上有两个零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668cb4c5c3cdb417bdfcd92dd1666c87.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/29/df932c94-24cd-4025-bd86-7639ea3906cf.png?resizew=174)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2656a02e2ea82f3f5c1dc260e08b18fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653e9f867c9f5859639caab9481bad55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2022-06-27 14:33:03
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适中
(0.65)
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解题方法
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e2a383cb47eb87493e86c8c40caf0.png)
的部分图象如下图所示,最高点的坐标为
.
的解析式;
(2)若存在
,对任意
,不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e2a383cb47eb87493e86c8c40caf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b34108a454b7c0f9455a4a688688bbcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e4f339ee59b5f58f22a4a68d1f4bba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec25b9d7ca47b780a744c2ebbf31d925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf9de897622fd739f9a3fb71ed8e08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解答题-问答题
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适中
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【推荐2】已知函数的部分图象如图所示,其中
,且
.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)若斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf3a0982efe6526c9a3f9841eb7f504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
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(0.65)
【推荐1】某同学用“五点法”画函数
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>0,
)在某一周期内的图象时,列表并填入了部分数据,如下表:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7904ecce18b22f12489c5b9e408b096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6af3e2115ce0aaf5b99ac70c4441d1.png)
(1)请将下表中的数据补充完整,求出E、F、G处的数值,并直接写出函数的解析式;
(2)求当[
,
]时,函数
的值域;
(3)若,
(﹣π,0),求
的值.
![](https://img.xkw.com/dksih/QBM/2018/12/12/2094783117697024/2097560822480896/STEM/b58e91551a7d4a1d8a60aa5ac7f867aa.png?resizew=285)
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解答题-问答题
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适中
(0.65)
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解题方法
【推荐2】已知函数
的部分图象如图所示,
是图象的最高点,
为图象与
轴的交点,
为坐标原点,若
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/5/20/2466986381107200/2467550468005888/STEM/097d7c942bab4107ae4b92f7497c9ebc.png?resizew=264)
(1)求函数
的解析式,
(2)将函数
的图象向右平移2个单位后得到函数
的图象,当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb66bb9901786243a5d70a5ffb7afc49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da3ebcc4ad28b8b96b35b1397a7757d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e714a58ba889a71f756e00b5ad1fe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a16521b1b6b2618022a1bb4288b5277.png)
![](https://img.xkw.com/dksih/QBM/2020/5/20/2466986381107200/2467550468005888/STEM/097d7c942bab4107ae4b92f7497c9ebc.png?resizew=264)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3b4dd2bd4bec99d3a930438cd7cc69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26449166d039249a8a86df230635c858.png)
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