名校
1 . 若函数
满足:对于任意正数
,都有
,
,且
,则称函数
为“
函数”
(1)试判断函数
是否是“
函数”,说明理由;
(2)若函数
为“
函数”,求实数
的取值范围;
(3)若函数
为“
函数”,且
,求证:对任意![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02680ae444ee339fd18ea2e2c596d6c7.png)
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b056a90a2751f04ba5fff3dc5c1d0674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4028ed0e84791a6da036d71af685b63d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5afc7ce5b1f3ac621c3bc08b4e243278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17dfefdc8541c51ae463de8b36086374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
(1)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec84404bbf6cf4a9d992e1760dcfdd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51152b488b3ea76753521a706d732f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249a976e88133f3b3733f09137cf5c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02680ae444ee339fd18ea2e2c596d6c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe2e15ba11f38188ba4445117d0914f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219598f1289ddb370d632ea141731d52.png)
您最近一年使用:0次
名校
2 . 已知函数
的反函数为
,且
.
(1)若
,求实数
的值;
(2)若关于
的方程
在区间
内有解,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99eaeb2ab68a49074d623ffca072fed8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8286909fe51a8726afacd6bc71d0388c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382f00f8f1bf0647536a310bb675885b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
您最近一年使用:0次
3 . 已知定义域为R的函数
是奇函数.
(1)求实数
的值;
(2)判断并用定义证明该函数在定义域R上的单调性;
(3)若方程
在
内有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d28fd96a55f935ee1528bb1047f6fa.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断并用定义证明该函数在定义域R上的单调性;
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/114a32a2a9c072e64b64deded3aac760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c892001a798315d1f0a9fed9b8364745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2021-10-20更新
|
574次组卷
|
2卷引用:上海市宝山中学2021-2022学年高二上学期10月月考数学试题
名校
解题方法
4 . 设函数
是定义域为
的奇函数.
(1)求实数
的值;
(2)若
,且
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9792b5c98744d61f36c40aabf27e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56fbec93189276445b83c6df4e9f4866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566ab90b0e828603626da60fec427a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44165805c9477000c83b902377ea3455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
5 . 用水清洗一堆蔬菜上残留的农药,对用一定量的水清洗一次的效果作如下假定:用1个单位量的水可洗掉蔬菜上残留农药量的
,用越多洗掉的农药量也越多,但总还有农药残留在蔬菜上.设用
单位量的水清洗一次以后,蔬菜上残留的农药量与本次清洗前残留的农药量之比为函数
,假定函数
,
是自然对数的底,
、
、
为实数,
的定义域为
,值域为
.
(1)求
、
、
的值;
(2)现有
单位量的水,可以清洗1次,也可以把水平均分成2份后清洗2次,试问用哪种方案清洗后蔬菜上残留的农药量比较少?说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9950c89f84d2535db242cf9c05f38571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.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/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdfed8d6862125dc1fecfce0322a750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf87d9d48c3de0a5e9f1a70e51a0bef.png)
(1)求
![](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)
(2)现有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ebd1d359040a1172a944ded96ed0127.png)
您最近一年使用:0次
6 . 设复数
是关于
的方程
(
且
,
为实数)的虚数根.
(1)若
,求
的取值范围以及
的值;
(2)若
,求所有虚数
的实部之和
(用仅含有字母
的式子表示);
(3)设虚数
对应的位置向量为
,记
,若
,求
的取值范围(用仅含有字母
的式子表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0015e474667c4588fda8d0cc5774b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e7930731eddbcfac592b808e9b698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/429671166ab81044097fc277f179ee96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de971553ea8a66d7849b138a4a0625c5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设虚数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83fb869e015cc9558c2ac40406db151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf7adcc976209d4b686156120bea276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
7 . 对于定义在
上的函数
,若函数
满足:①在区间
上单调递减;②存在常数
,使其值域为
,则称函数
是函数
的“渐近函数”.
(1)求证:函数
不是函数
的“渐近函数”;
(2)判断函数
是不是函数
,
的“渐近函数”,并说明理由;
(3)若函数
,
,
,求证:
是函数
的“渐近函数”充要条件是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdfed8d6862125dc1fecfce0322a750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352d57c9210f6ee3eb57469166163cbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdfed8d6862125dc1fecfce0322a750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c74d989359b2c4d9684b62a3b2a6c6c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e228067dbbd535c24d7555d0bbfa19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99562beeb4f995300add1887759932ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9beb0c20210186411051d681225df04b.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa1c68cebf2203d277f61cfdbacf175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5c32c4a614b9a3b4a0dd1eff7d9191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168163183a3d4663be45755f44676191.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71c0fb31a3cde7a950037718c943600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168163183a3d4663be45755f44676191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdef85d50578d84a92ffcc754f7afddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
您最近一年使用:0次
8 . 设函数
.
(1)求函数
的值域和零点;
(2)请判断函数
的奇偶性和单调性,井给予证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04cfa41f9ecb25c17fa55be215693bc.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
(2)请判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
您最近一年使用:0次
9 . 在中国绿化基金会的支持下,库布齐沙漠得到有效治理.2017年底沙漠的绿化率已达
,从2018年开始,每年将出现这样的情况,上一年底沙漠面积的
被栽上树改造为绿洲,而同时,上一年底绿洲面积的
又被侵蚀,变为沙漠.
(1)设库布齐沙漠面积为1,由绿洲面积和沙漠面积构成.2017年底绿洲面积为
,经过1年绿洲面积为
,经过n年绿洲面积为
,试用
表示
;
(2)问至少需要经过多少年的努力才能使库布齐沙漠的绿洲面积超过
(年数取整数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4ec5b9d2f5dbd6ec1cac34dbd8e547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a026dcb4b3d2c249b1c7193a86657b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/356dd6809a78dacc01ab21226c4afc49.png)
(1)设库布齐沙漠面积为1,由绿洲面积和沙漠面积构成.2017年底绿洲面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87227afdc3af6d6b67bc86a3f611818c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
(2)问至少需要经过多少年的努力才能使库布齐沙漠的绿洲面积超过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beddb9806191a43e6c6b194300981f11.png)
您最近一年使用:0次
名校
10 . 已知数列
满足
.
(1)求
的通项公式
;
(2)若要使
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e967722ddd814439f95acb20569e141c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)若要使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db448923115077c455804e8adf6a413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次