已知函数
.
(1)求
的值;
(2)求函数
在区间
上的最小值,并求使
取得最小值时的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14f1116c1515d1574cbc5904a46419e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecd5f251e8a94a611cc98d239ff9575.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
2021高三·北京·专题练习 查看更多[1]
(已下线)卷16-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(北京专用)
更新时间:2021-10-11 13:45:05
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解答题-问答题
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适中
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【推荐1】已知函数
,
.
(1)求函数
的最小正周期和单调递减区间;
(2)求函数
在
上的最小值及相应自变量的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d843a76372c550db5754e9cbef2702f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.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/44d51992c05a557cf6058664f1f8961e.png)
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适中
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名校
【推荐2】某同学用“五点法”画函数
在某一个周期内的图像时,列表并填入了部分数据如下:
(1)求
,
,
;
(2)求函数
在区间
上的最值及取得最值时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d1fc8065ca4f711477a3d26c8c5e514.png)
0 | |||||
0 | 0 |
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42dc46054354b63b52c2c4dfadd07258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解答题-问答题
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适中
(0.65)
【推荐3】函数
的一段图象如图所示.
的解析式;
(2)求
在
上的单调减区间;
(3)若存在
,使不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5c3786c8bf19470b53921b83daeee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea5aea7fae507cf564eb5314eb799ba.png)
(3)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b27441df863a14f746db73cf0b48ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e1e9e4f6e9284c565cbb78b40a534d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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适中
(0.65)
【推荐1】已知函数
.
(1)解不等式
;
(2)设
,求
在
上的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3dd63cd6c9d9f45f0f73b70bcab44c7.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e930bd779b02e49f6fcc92737a118090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c3ed753b6cc25d5f9ced600b55e0.png)
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适中
(0.65)
解题方法
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f3263c9249894d4bbb360f95f0a774.png)
的最小正周期为
.
(1)求
的值与
的单调递减区间;
(2)在
中,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f3263c9249894d4bbb360f95f0a774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ddbb5cfaedab59c97125105c3fe590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5689e9f818d60432913e012262371f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0577566dbcc526fb6f783491a4784902.png)
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