已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ebf7e19e325b1ca23c54468ab1e8fcb.png)
(1)写出函数的最小正周期;
(2)设
,
的最小值是
,最大值是
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ebf7e19e325b1ca23c54468ab1e8fcb.png)
(1)写出函数的最小正周期;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
更新时间:2020-08-26 14:06:35
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数
.
(1)求函数
的最大值及相应
的取值;
(2)方程
在
上有且只有一个解,求实数
的取值范围;
(3)是否存在实数
满足对任意
,都存在
,使
成立.若存在,求
的取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dc58c3df4680b04ac80da3b3e0a1a8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4317afae8118bfc41f443e7f18f417ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33890c6b0bf167514d44139d9dca0154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2927014825940051c10ae87442cf11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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适中
(0.65)
名校
解题方法
【推荐2】已知向量
,函数
.
(1)求函数
的最小正周期;
(2)当
时,求函数
的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed39006b18e1a4efb337c31738ffb080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1659f0a03b6c37d87a0ff5e112ee3d2b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知
.
(1)求
在
上的单调递增区间;
(2)设
的内角A,B,C的对边分别为a,b,c,若
,
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097e79718b2f9d65d4d1a456e0ce5add.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55cfcbb5c5950e18a8452b38bb17036.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3819e3abe5ba10dc15142a6a8a616ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36ec31cfd615abfbee3ed2f4a1d8883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐2】设
,将奇函数
图象向左平移
个单位,再将图象上各点的横坐标缩短为原来的
,纵坐标不变,得到函数
的图像.
(1)求a的值及函数
的解析式;
(2)设
,
,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a57989c98833e59ad372c6baca4e8d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9318f9cf3945e23ff6f27b0645430bd.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)求a的值及函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d3473b49783d7ee1dfe4b06d9dc595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
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适中
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【推荐1】已知sin(3π+α)=2sin,求下列各式的值:
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适中
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【推荐2】已知函数
.
(1)求
的值;
(2)若
,
.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86b9e7c0be7a742bba1ceb93781bc94.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92bff061cb1ca10bf9c50037403ae532.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4074575c946a3916bdb84afeba834f55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5db64feb6bfa180fd4a1e3f346a105e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f89dfde67bac343af2700458faa8ee.png)
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】在
中.
,D为BC边上的一点,
,再从下列三个条件中选择两个作为已知,求
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①
;②
;③
.
注:如果选择多种方案分别解答,那么按第一种方案解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b922c7fc50a56933a6cb9d80b1e7bb6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca0bea30d1e3a02bbd2500ec2821b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b593943d3c3a86e17b74fa2efa8d72e1.png)
注:如果选择多种方案分别解答,那么按第一种方案解答计分.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/f37b4cf5-e76a-48cf-8459-e7bf7762027d.png?resizew=254)
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解答题-问答题
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适中
(0.65)
【推荐2】在
中,内角A、B、C的对边分别记为a、b、c,且
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(1)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c10a50318087ba8ff34816c3de10d3a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229143db4bbe2991164a32188410fcdc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4b4c65e6eeb3394c62a6bbfe015fb8.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次