解题方法
1 . 设函数
的定义域为R,
为奇函数,
为偶函数,当
时,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3d75d78903bd1fe1334b87a159deff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c79e24a717a8cf46aa75d3437a9e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51459b19f03662079f9b08d47375683c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0bbec4f3caec14801bac08683d0f331.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.方程![]() |
您最近一年使用:0次
2 . 对于平面向量
,定义“
变换”:
,其中
表示
中较大的一个数,
表示
中较小的一个数.若
,则
.记
.
(1)若
,求
及
;
(2)已知
,将
经过
次
变换后,
最小,求
的最小值;
(3)证明:对任意
,经过若干次
变换后,必存在
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4fde5542ad04744c14f912648f3aa0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bd66e602e9c043218806708e943c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb00071815c94c090a4095b4964fefb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7bc9573b3a8758511c63731db18183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96340894e8fb63c00d778b4d654d0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7bc9573b3a8758511c63731db18183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701ab98a2bf1135cd989822b0738e11d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/484c1b7bc2fc5677406e20180f667200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0624499e16b73afec432dd1afd6153d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b162d1d5bfaa7760678ea3d624beb171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5c19921380da55f5f1a00809a34503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35234a3829d238ea479fef9cec166468.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aceb3666a9d49ef40c39eac116ccd5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20cfb8c8707c3960bf1fd46b805e481d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a887552671e6d4df390320ee9a36150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)证明:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f389ec068eb1d1aa586b79097d70a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dcd78ec8777a8e6e5b32222cdb15c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06296b9023c1dca6f44b8297842bef7c.png)
您最近一年使用:0次
3 . 已知函数
,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098383b3aed7444c62a2a4561fdf9956.png)
A.![]() ![]() |
B.![]() ![]() |
C.若![]() ![]() |
D.将![]() ![]() |
您最近一年使用:0次
名校
4 . 已知函数
(
)图象的一个对称中心为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2626a5bdd100424d2416a665ba0e9518.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c9e46448bc791c441ca02d8f4508eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b212e0d4339cbd3d236a807547ebf6.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() ![]() |
D.将![]() ![]() |
您最近一年使用:0次
2024-06-08更新
|
655次组卷
|
2卷引用:广西南宁市第三中学2024届高三下学期校二模数学试题
名校
解题方法
5 . 设
、
、
为非零向量,若
,则
的最大值与最小值的差为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7328473182f501a7d331662c02f7ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9963fe377bb415d71d1fe599eee188ce.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
6 . 已知函数
,若
在区间
内恰好有2022个零点,则n的取值可以为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd09defec12f97d564a4cbc656c0ea67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e55f35de963b5d2005054f0487bb6a7.png)
A.2025 | B.2024 | C.1011 | D.1348 |
您最近一年使用:0次
解题方法
7 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/370d9a645c023a1279c6fb9daa3cacab.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89903d1a72df78bb58b1dd14ee94aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/370d9a645c023a1279c6fb9daa3cacab.png)
您最近一年使用:0次
解题方法
8 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f3f2054a16b70c1450552977640c3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/763d061631872c611d5662f7229127a6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-14更新
|
908次组卷
|
4卷引用:广西壮族自治区贵港市2024届高三下学期模拟预测数学试题
名校
解题方法
9 . 将函数
的图象向右平移
个单位,再把所得图象上各点的横坐标缩短为原来的一半,纵坐标不变,得到函数
的图象,则关于
的说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45000fc305adab379d961b77463c21d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
A.最小正周期为![]() | B.奇函数 |
C.在![]() | D.关于![]() |
您最近一年使用:0次
2024-05-12更新
|
299次组卷
|
2卷引用:广西南宁市第三十六中学2024届高三下学期适应性训练数学试题
10 . 已知函数
在
上有最小值没有最大值,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f674a5ec6f21c7e333180f68a3cb3938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8ec0ccdb6db6fbaeb1172e281ec22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次