已知函数
,
(1)若当
时,函数
的值域为
,求实数
的值;
(2)在(1)条件下,求函数
图像的对称中心和单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7eaf2d8fd58261bd07cae80171bc021.png)
(1)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2c8cbc659281e55132c6400b5c8bfc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)在(1)条件下,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
2021·上海浦东新·模拟预测 查看更多[1]
(已下线)上海市华东师范大学第二附属中学2021届高三下学期5月高考模拟数学试题
更新时间:2023-01-29 22:28:26
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【推荐1】已知函数
,
.
(1)求函数
的最小正周期和单调增区间;
(2)若不等式
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190fd60387700515b94fa7b081fd346b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b791ef4858df886be749c11a7690f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0a5133b8460df6c46da0e44051e2a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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【推荐2】已知函数
的图像上相邻两条对称轴的距离是
,
的最大值与最小值之差为1,且
的图像的一个对称中心是
.
(1)求函数
的解析式;
(2)若方程
在区间
上有解,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4703fcfaff44963aecb2a7d22eb58c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e964ee2f6af16a00b658bac773a4b51.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61dff5b63913762b3be82e55a18f3847.png)
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【推荐3】海水受日月的引力,在一定的时候发生涨落的现象叫潮汐.一般早潮叫潮,晚潮叫汐.在通常情况下,船在涨潮时驶进航道,靠近船坞;卸货后落潮时返回海洋.下面是某港口在某季节每天的时刻与水深值(单位:
)记录表:
经过长期观测,这个港口的水深与时间的关系,可以近似用函数
来描述.
(1)根据以上数据,求出
时,函数
的表达式;
(2)一条货船的吃水深度(船底与水面的距离)为
,安全条例规定至少要有
的安全间隙(船底与海底的距离),问该船在一天内(
)何时能进入港口?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
时刻 | |||||||||
水深值 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a5ebf2a38faff038694bf86f54ac999.png)
(1)根据以上数据,求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d2a2cb8a29defa041fe2a264012c689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2709ca478fb15ea08e8aa55328eae8e6.png)
(2)一条货船的吃水深度(船底与水面的距离)为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b503e63e24d85326a19e7e61a51e72db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87fb28f3afb113c21b2f978fb0cfd920.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd6beb05dac2d35df45457e2f99f2ed.png)
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【推荐1】已知函数
.
(1)求函数
的最小正周期和对称轴;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63f3765b7cda001042721457abbf3e2.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d8ebf8496a7195ee2d09f35747c6189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
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【推荐2】已知函数
.
(1)求
的对称中心和单调递增区间;
(2)求
在区间
上的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece68344c45a5c9c1fbc702dddf439f3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e064495e745cc1ea95985949dcdae2.png)
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【推荐1】已知
外接圆的半径为
,其内角
的对边长分别为
.若
.
(1)求角
的大小.
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/637eb011dd7a30ec8f821c9b032eb8f9.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a93047e2369dc3e94f08c798cef4a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
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【推荐2】在①
,②
,③
这三个条件中任选一个,补充到下面的问题中并作答.
问题:在
中,内角A,B,C的对边分别为a,b,c.____________.
(1)求角B;
(2)若
外接圆直径等于3.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351eafd19d4f45a7a743ed7513e87eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6df2aa5ec7101c7dd355f0cab6f4fe31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8776f012a974225f7eed62a1464d4ca.png)
问题:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)求角B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed1b99a131763e109d985af88e9d651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f3a180c35808d1fe14ae17876c4cc0.png)
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【推荐3】已知函数
,其中
,且
的最小正周期为
.
(1)求
的值及函数
的单调递减区间;
(2)在锐角
中,角
,
,
的对边分别为
,
,
,若角
满足
,且
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2de504b9001a4efd3b1250d00f6cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.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)在锐角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2e89c6482fc9797894387fa2a24e4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04917316fa418f8fcf8f5d75b1094fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐1】已知函数
的最小正周期为
.
(1)求
的值以及函数
的单调增区间;
(2)若方程
在区间
内有两个不同的解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8fad278e51e07a1d4ae3b3b6121e1c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e202311386b920f5b269ae0fda0c4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】已知函数
.
(1)求
的单调减区间;
(2)当
时,求
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e30f0d48affc433e59a68e85749eae8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1b419c7a6ad7ff6889e8b606871972.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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