1 . 对于定义在
上的函数
,如果存在区间
,同时满足下列两个条件:
①
在区间
上是单调递增的;②当
时,函数的值域也是
,则称
是函数
的一个“递增黄金区间”.下列函数中存在“递增黄金区间”的是:___________ .(填写正确函数的序号)
①
;②
;③
;④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a878bc8bda7472bd8b8410b07c42620f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe276c0522839b1d37086d92612aa7c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db9ddb5600d77c0306734ac656b84cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5afe26cc09b558a11a8b42ec4a88dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f0fadbe551b0e0eb7bf9440be740b9.png)
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名校
2 . 已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/c7081e19-5730-438b-aaed-da9a2111a1b1.png?resizew=185)
(1)画出函数图象并写出函数的单调区间(不需要证明);
(2)求集合M={m|使方程
有两个不相等的实根}.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9d62d5f63eea7672fd868c4d9119513.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/12/c7081e19-5730-438b-aaed-da9a2111a1b1.png?resizew=185)
(1)画出函数图象并写出函数的单调区间(不需要证明);
(2)求集合M={m|使方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb2e46f49adba6036e2624639a1b966.png)
您最近一年使用:0次
3 . 已知
,
.
(1)分别画出
、
的图象(不必写出画法,请先用铅笔画,确定后再用黑色水笔描黑);
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/00e01c42-4f93-4e94-8271-7a1b99e43568.png?resizew=204)
(2)用二分法求函数
的零点
(精确度为
);
(3)
,用
表示
,
中的较大者,记为
,当方程
有三个不同的实数根时,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02bff0b90555b9c99687b9ad76685cfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a58f77d3d37b358b9d69563949c7fc.png)
(1)分别画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/00e01c42-4f93-4e94-8271-7a1b99e43568.png?resizew=204)
(2)用二分法求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca4be345087f993a4078e16c16608e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7412fd1be21e4eaf388963a82ac2b11.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fad1dd76d5b72f10f5bb62693a2996f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531bcdb6324cb5a759301daddf9768c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316f701027f4bd38abca039b3499b498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6c537dabe7850c33de3d7f147e8b2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 已知函数
(
).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/36a20dc6-fef7-4b15-8ddd-dfc442d2c67a.png?resizew=146)
(1)当
时,请画出
的图像,并根据图像写出函数
的单调区间;
(2)当
时,
的最小值为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db58afeac1cfe83233a8887e16f59b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44aca6c00903b9dd306287ba3bb91035.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/36a20dc6-fef7-4b15-8ddd-dfc442d2c67a.png?resizew=146)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672905d340f2f67c83b306d000a1b037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-11-23更新
|
139次组卷
|
3卷引用:广东省东莞高级中学、东莞第六高级中学2022-2023学年高一上学期期中联考数学试题
名校
解题方法
5 . 已知
是定义域为R的奇函数,当
时,
.
(1)求函数
的解析式;
(2)画出函数
的图像;
(3)若函数
在
上单调递增,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8ed92f58d44ee590c425bc741195c1.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4433abcf61cb7a015764b43f11fe6d75.png)
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2022-10-31更新
|
525次组卷
|
3卷引用:广东省东莞市厚街中学2022-2023学年高一上学期第一次月考数学试题
名校
6 . 已知三个函数①
,②
,③
.
(1)请从上述三个函数中选择一个函数,根据你选择的函数画出该函数的图象(不用写作图过程),并写出该函数的单调递减区间(不必说明理由);
(2)把(1)中所选的函数记为函数
,若关于x的方程
有且仅有两个不同的根,求实数k的取值范围;
(3)(请从下面三个选项中选一个作答)
(i)若(1)中所选①的函数时,有
,且
,求
的值;
(ii)若(1)中所选②的函数时,有
,且
,求
的取值范围;
(iii)若(1)中所选③的函数时,有
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8806991f2fe71293a2c9c085ba421dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4316e258fbc3388404451970713f3566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd8a7f8ab00c15f5096c2e36b6015740.png)
(1)请从上述三个函数中选择一个函数,根据你选择的函数画出该函数的图象(不用写作图过程),并写出该函数的单调递减区间(不必说明理由);
(2)把(1)中所选的函数记为函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec5e2417c3b9bc615a13300a5aebcc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9730036fbec3c7d938b29cc12494e1a9.png)
(3)(请从下面三个选项中选一个作答)
(i)若(1)中所选①的函数时,有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23724773d7b2b5e4754c8f6b7b49075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7237337a22bea0185e88813e44066f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083c464fc54faffa0b122bde6e71d6a6.png)
(ii)若(1)中所选②的函数时,有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01289ed83e6d127e19010d7e0bf59d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8567c0348e755bc0542cac37f3522d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab4455641abefc4aaef113c00c99a38.png)
(iii)若(1)中所选③的函数时,有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5921c32cfb51eb47bc363eca04f3e282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b6fc02b5fef923c6c60b85613af810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d26741ccc08a155d9c86b5f3b101b63.png)
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7 . 辆高速列车在某段路程中行驶的速率v(单位:
)与时间
(单位:
)的关系如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/2c6d2232-c192-4d32-aa91-7fd38f643db6.png?resizew=399)
(1)求梯形
的面积,并说明所求面积的实际含义;
(2)记梯形
位于直线
的左侧的图形的面积为
,求函数
的解析式,并画出其图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca55c030e7d88040525c4fb9a278f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1933311c0c090e1138e4dd388b7adf8a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/2c6d2232-c192-4d32-aa91-7fd38f643db6.png?resizew=399)
(1)求梯形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
(2)记梯形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c67d2fa597fb81c8943ddfcd011227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b35d2aa8af392c852eb9b1cb1732bd.png)
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名校
8 . 已知函数
是定义在
上的偶函数,且当
时,
,现已画出函数
在
轴左侧的图象,如图所示,请根据图象.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/22/552e1125-50b7-444e-a5f9-ec9821c5f406.png?resizew=223)
(1)补充完整图象并写出函数
的增区间;
(2)写出函数
的解析式;
(3)若函数
,求函数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becd598a11b876d858728161a7a09705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/22/552e1125-50b7-444e-a5f9-ec9821c5f406.png?resizew=223)
(1)补充完整图象并写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7f04a0d543ab3f626b6fff5d2305f7.png)
(2)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7f04a0d543ab3f626b6fff5d2305f7.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a3e8f8d4cd047c61800c3babeeddc54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
2022-04-16更新
|
724次组卷
|
6卷引用:广东省广州市第五中学2022-2023学年高一上学期第一次段考数学试题
解题方法
9 . 对于等式
,如果将
视为自变量
,
视为常数,
为关于
(即
)的函数,记为
,那么
,是幂函数;如果将
视为常数,
视为自变量
,
为关于
(即
)的函数,记为
,那么
,是指数函数;如果将
视为常数,
视为自变量
为关于
(即
)的函数,记为
,那么
,是对数函数.事实上,由这个等式还可以得到更多的函数模型.例如,如果
为常数
(
为自然对数的底数),将
视为自变量
,则
为
的函数,记为
.
(1)试将
表示成
的函数
;
(2)函数的性质通常指函数的定义域、值域、单调性、奇偶性等,请根据你学习到的函数知识直接写出该函数
的性质,不必证明.并尝试在所给坐标系中画出函数的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a2991a3f4c7d0f4cc8e0425d8c7bd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce04612f2dc7928760c86f67a883df7.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da53929a8f67b9aa3827fdbd73ebd265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca93fca4ed03556a8261286386f8abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca02970d65fea8d2e9dab7dc060f073f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf7ee57490ef5f04b72050592ba1436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)试将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)函数的性质通常指函数的定义域、值域、单调性、奇偶性等,请根据你学习到的函数知识直接写出该函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896474718625792/2948205426188288/STEM/3b411d2b0e7c4e518b1909a0c8656bbe.png?resizew=327)
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10 . 在密闭培养环境中,某类细菌的繁殖在初期会较快,随着单位体积内细菌数量的增加,繁殖速度又会减慢.在一次实验中,检测到这类细菌在培养皿中的数量
(单位:百万个)与培养时间
(单位:小时)的关系为:
根据表格中的数据画出散点图如下:
![](https://img.xkw.com/dksih/QBM/2022/1/20/2898435823640576/2921477800157184/STEM/69fddad1-eaa7-4dfc-aea8-d29c4047c49f.png?resizew=190)
为了描述从第
小时开始细菌数量随时间变化的关系,现有以下三种模型供选择:
①
,②
,③
.
(1)选出你认为最符合实际的函数模型,并说明理由;
(2)利用
和
这两组数据求出你选择的函数模型的解析式,并预测从第
小时开始,至少再经过多少个小时,细菌数量达到
百万个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2022/1/20/2898435823640576/2921477800157184/STEM/69fddad1-eaa7-4dfc-aea8-d29c4047c49f.png?resizew=190)
为了描述从第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/508bc81990bc88f610fb77b42f01d85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a418b17985bab28ce56097473340dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb933c19ee6f901a189a33345d816c57.png)
(1)选出你认为最符合实际的函数模型,并说明理由;
(2)利用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29bb7ff5012ac35f2e5fa64b0247ce93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9094bcc858b1ebeb0c5a285ca491d139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
您最近一年使用:0次
2022-02-22更新
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1030次组卷
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7卷引用:广东省佛山市三水实验中学2022-2023学年高一上学期第二次月考数学试题