解题方法
1 . 已知f (xy)=f (x)+f (y).
(1)若x,y∈R,求f (1),f (-1)的值;
(2)若x,y∈R,判断y=f (x)的奇偶性;
(3)若函数f (x)在其定义域(0,+∞)上是增函数,f (2)=1,f (x)+f (x-6)≤4,求x的取值范围.
(1)若x,y∈R,求f (1),f (-1)的值;
(2)若x,y∈R,判断y=f (x)的奇偶性;
(3)若函数f (x)在其定义域(0,+∞)上是增函数,f (2)=1,f (x)+f (x-6)≤4,求x的取值范围.
您最近一年使用:0次
解题方法
2 . 若定义在
上的函数
对任意实数
,
,都有
成立,且当
时,
.
(1)求证:
为奇函数;
(2)判断
在
上的单调性,并说明理由;
(3)若
,解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03094eee75cad78d50cf8268a6900b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d5a0e25aebe1cc182d2247ed344652.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475b819c2473a1d95fe088344a9226bf.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed4a43f81fa25b42b3cce2d918c1054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf3885343cc801493b9e9ee6b547787.png)
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2022-02-09更新
|
810次组卷
|
2卷引用:安徽省A10联盟2021-2022学年高一上学期期中联考数学试题
2022高三·全国·专题练习
解题方法
3 . 已知函数fx的定义域为[0,1],且满足下列条件:① 对于任意
[0,1],总有
,且
;② 若
则有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a98011cdc72391de6df6d0d21c03957.png)
(1)求f0的值;
(2)求证:fx≤4;
(3)当
时,试证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e44c45ef0334070fc149b452dee26ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369100ccd44feaa77e5f119ea949a879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b1ec158439b8c797514d254b7944c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d13636e01bdfd41795e942d23c8f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a98011cdc72391de6df6d0d21c03957.png)
(1)求f0的值;
(2)求证:fx≤4;
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e5b96b065a998c7c6e6bf10dc89df4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e73db3349fffa5db4d360baebee4bd4.png)
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名校
解题方法
4 . 已知定义在
上的函数
满足
,
,
,且
为奇函数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2864deabfe9c2ea1882d3fa99b7e3c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492269c463a2dd4cde7abbaac3e4a64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33875cdd9542d54912febef6b02d014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ad5effccd77a0911f62f6805477033.png)
A.![]() |
B.![]() ![]() |
C.![]() |
D.![]() |
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解题方法
5 . 已知函数
,
,则如图所示的函数为( )
![](https://img.xkw.com/dksih/QBM/2022/1/5/2887935234629632/2892801176584192/STEM/f2eaebf7-1a42-4eb7-b7ab-def3d211cb92.png?resizew=189)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa2f610cfde9fa789e129be55de044c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e948a91db4f9367e19ed1dab79c0f300.png)
![](https://img.xkw.com/dksih/QBM/2022/1/5/2887935234629632/2892801176584192/STEM/f2eaebf7-1a42-4eb7-b7ab-def3d211cb92.png?resizew=189)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-01-12更新
|
349次组卷
|
3卷引用:浙江省绍兴市诸暨海亮高级中学2021-2022学年高三上学期选考模拟最后一测数学试题
解题方法
6 . 定义在
上的函数
满足
,且当
时,
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc30165c18de623d0a3efb961e606d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40652a7557d331177485694db3238155.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01d07f3a82196cabb98a2ab98686eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 设函数
对任意
,都有
,且当
时,
.
(1)证明:
为奇函数;
(2)证明:
为减函数,
(3)若
,试求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8c7bb4fe82c62be38565dae4d303b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c9c6fec7b0ccb7dbb2c05e2f1dab75.png)
您最近一年使用:0次
2022-01-09更新
|
789次组卷
|
3卷引用:福建省泉州市第六中学2021-2022学年高一上学期期中模块测试数学试题
福建省泉州市第六中学2021-2022学年高一上学期期中模块测试数学试题广东省汕头经济特区林百欣中学2022-2023学年高一上学期期中数学试题(已下线)期中模拟测试 -【同步题型讲义】(人教A版2019必修第一册)
解题方法
8 . 若函数
是周期为2的奇函数,则下列选项一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f4b2c9c602e8365d008c47b3e5bba0.png)
A.函数![]() ![]() | B.函数![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021高二·江苏·专题练习
解题方法
9 . 已知函数
定义在区间
上,
,且当x,
时,恒有
,又数列
满足
,
,设
,对于任意的
,
的最小自然数m的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1947266214c98cfdeea15425a47de17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773932788bfccf3f2a43207a159c33c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bf92155f517ac547552711d7e1804d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26bd53dd2cc57cead89f89b46d304a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df49f07a4e2a6dfe4dca3763364f762c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aba95f1aacf777532636f8409030f69.png)
A.3 | B.4 | C.5 | D.6 |
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名校
10 . 若函数
是定义在
上的奇函数,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
A.![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.![]() |
您最近一年使用:0次