1 . 对于每一对实数
,
,函数
满足函数方程
,如果
,那么满足
的
的个数是( )
![](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/ca4ff0af96ea467337cb30c4c765b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d878fd46f7f8e8538acb7906c8271cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249a976e88133f3b3733f09137cf5c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d99f2cf2a63a458a5e251eccde7ee8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.1个 | B.2个 | C.3个 | D.无数多个 |
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名校
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2fba30396c2d5cdd37433f34a70ef20.png)
(1)若函数
为偶函数,求
的值;
(2)当
时,(ⅰ)函数
,(ⅱ)若关于x的方程
有两个不同的实根
且
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2fba30396c2d5cdd37433f34a70ef20.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d41244547838992c51263681a0ed2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8b79cbafa3dd8602fa3a103b5000d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4b360499547299003d8f5617f6c0ee.png)
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解题方法
3 . 已知函数
,则关于
的方程
根的个数可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4fecc39e5595d13318f6071ba4a56b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edfde98d1334bbb9375d8df7130e379c.png)
A.0个 | B.1个 | C.2个 | D.3个 |
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4 . 常用放射性物质质量衰减一半所用的时间来描述其衰减情况,这个时间被称做半衰期,记为
(单位:天).铅制容器中有甲、乙两种放射性物质,其半衰期分别为
.开始记录时,这两种物质的质量相等,512天后测量发现乙的质量为甲的质量的
,则
满足的关系式为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5dd698ddbe275267809650dc551e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5dd698ddbe275267809650dc551e34.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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5 . 已知函数
其中
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4911900ac1c8fb5b0bc6b64f1ad6f030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166cc3bc78f3870fc454556a1c8b5dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
A.![]() | B.函数![]() |
C.![]() | D.![]() |
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2024-06-10更新
|
413次组卷
|
2卷引用:浙江省杭州市西湖高级中学2024届高三下学期数学模拟预测数学试题
名校
解题方法
6 . 已知函数
,则关于
方程
的根个数不可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8dc99a83165850cfdb3865907ca7949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edfde98d1334bbb9375d8df7130e379c.png)
A.0个 | B.1个 | C.2个 | D.3个 |
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2024-06-08更新
|
1006次组卷
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2卷引用:浙江省温州市2024届高三第三次适应性考试数学试题
7 . 当
且
时,
对一切
,
恒成立.学生小刚在研究对数运算时,发现有这么一个等式
,带着好奇,他进一步对
进行深入研究.
(1)若正数
,
满足
,当
时,求
的值;
(2)除整数对
,请再举出一个整数对
满足
;
(3)证明:当
时,只有一对正整数对
使得等式
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62d7d74585d13636e5c167a775cb227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f81a1bedc557556e614309feead266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3703709b06e37fb0ed1e7b47f346eef1.png)
(1)若正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3703709b06e37fb0ed1e7b47f346eef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94174f37421d296a192b2df66c05f875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)除整数对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3703709b06e37fb0ed1e7b47f346eef1.png)
(3)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3703709b06e37fb0ed1e7b47f346eef1.png)
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2024-06-08更新
|
196次组卷
|
2卷引用:浙江省培优联盟2023-2024学年高一下学期5月联考数学试题
名校
解题方法
8 . 已知函数
为偶函数,对
,
,且
,若
,则以下结论正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81e15b871dd32b2438ef8025bcc42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892e9201b1a94b5d6094adb48adeb36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
9 . 已知函数
若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24563cbe956b5099e3f0c62e03421a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb04d514baf56eec084671b88898770b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98cf78bc7435d06dd8a9112c5c8a178b.png)
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10 . 设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bfce4cc86796843248b27fa39a23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b55853360ee06f08c84eee08bb2fedb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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