![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b892822f8dc2fa746990605bd951922d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c033e7819356644ee7aa1f94ec687f7b.png)
其中正确的结论个数是( )
A.3 | B.2 | C.1 | D.0 |
更新时间:2023-03-10 01:23:44
|
相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】以下说法正确的有( )
(1)若
,
,则
;
(2)若
是定义在
上的奇函数,则
;
(3)函数
的单调区间是
;
(4)在映射
的作用下,
中元素
与
中元素
对应,则与
中元素
对应的
中元素是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7be646f678c3383bf3b624549301874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ba2d511fdff1c0551f23c8960b4eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3c088b7dd05f0273f4d95d09ee26fd8.png)
(2)若
![](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/01bea8bf593f594c51fc7cc547482bee.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/862df674d5668eb2c8d67c889866463f.png)
(4)在映射
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a662f934b3bf3ad6f1f1414fedb381d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5eeffe3dd30cc5266db6e9f3d24c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】如图,放置的边长为1的正方形
沿
轴滚动,点
恰好经过原点,设顶点
的轨迹方程是
,则对函数
有下列命题:①若
,则函数
是偶函数;②对任意的
,都有
;③函数
在区间
上单调递减;④函数
在区间
上是减函数.其中真命题的序号是( )
![](https://img.xkw.com/dksih/QBM/2021/7/12/2762627578208256/2790827588943872/STEM/670b13411eed4a0da61a08d153f84267.png?resizew=293)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b6fd5a1dbb65cbe9bfe602c914a24f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558a2ecdce526b2da399693537426986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44284ff1ea50429a0610e13363be6080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9577e0574ff58314de9b20b0a6c4a3ab.png)
![](https://img.xkw.com/dksih/QBM/2021/7/12/2762627578208256/2790827588943872/STEM/670b13411eed4a0da61a08d153f84267.png?resizew=293)
A.①②③ | B.①②④ | C.②③④ | D.①③④ |
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【推荐1】若关于
的不等式
在区间
上有解,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1964bdd72197b2ba70da3ba75f9a7162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐2】已知函数
的定义域为D,若对于
,
,
,
分别为某个三角形的边长,则称
为“三角形函数”.给出下列四个函数:
①
;②
;③
;④
.其中为“三角形函数”的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1a90a3f1cc4c59144645dfdaed6daf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f484115a9df1b6060d6b14df85c6f38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35770a47ffcba6bf1d94eceabb416d96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee0882f5f575d9e0ae7677efbd41b38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77de30ac6928b56422fa3fd3553f5e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e030ad3f42f1f3beffaa11c69630b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133d2db6c4c3ed2c2b7783dc80a5c8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62ef59cb4d79fd5396113c50bece657.png)
A.①②③ | B.②④ | C.①③ | D.①③④ |
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【推荐2】函数
的部分图象大致为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20dd457065dacbd1b8a880e0f86783db.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】已知定义在
上的函数
满足:(1)
;(2)
;(3)
时,
.则
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048f8d3ee5bf62cefacbd0ee25839932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f91ba0d869011ba04651d2d4c60825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3be5e468089b7ebb31ef39ca911798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2009d40092d8d8fb785f433930a3a064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3e5af834ad572d8066e9079812a1e2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
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【推荐2】已知定义在
上的奇函数
满足①对任意的
都有
成立;②当
时,
,则
在
上根的个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4cff510b81f7160ec53b7ef179f114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cdcc3c9b5baf68669d8e1bdb259a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbf34d9f9957daa65c306c1d1258d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5836152787ca77760a3a08d6228f2b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d55883c37a0960762f16c1337dcf3e0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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