1 . 已知向量
函数
,其图象的两条相邻对称轴间的距离为
.
(1)求函数
的解析式;
(2)将函数
的图象上各点的横坐标缩短为原来的
,纵坐标不变,再将图象向右平移
个单位,得到
的图象,求
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b99b30e60664c607baedd5e36e50653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd75154f080f2d223de3ab2a2121641.png)
![](https://img.xkw.com/dksih/QBM/2020/5/18/2465532298108928/2465883860639744/STEM/b17e1b7d26a14b2d86f49dffba19e407.png?resizew=9)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdaf49f9611922348aa2784465da614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
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2 . 设函数
,若函数
有三个零点,分别为
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198b5448fba2e610054ceb94ab9b1a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c27716788e838bd934952fe13c5e4671.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/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c06ceee2b1e227de025476eee95672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5b965b3f27889e139013aa8c8f8fe3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 设
是定义在区间
上的奇函数,且为单调函数,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1de789dddea87a5e0c1892bf06531e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e7da139d50e49103e194500c59cd25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/124df5d3827c724a503e0326e462547f.png)
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2020-05-18更新
|
301次组卷
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3卷引用:浙江省金华市浦江县建华中学2022-2023学年高一下学期3月评估检测数学试题
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4 . 已知向量
,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4409180db9f3d73bb04d25593ae37e6d.png)
(1)求
最小正周期及单调增区间.
(2)求
在区间
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f687e2824d8fc41d9df4b052278dd05f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4409180db9f3d73bb04d25593ae37e6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
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2020-05-16更新
|
191次组卷
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2卷引用:辽宁省沈阳市实验中学2019-2020学年高一下学期期中考试数学试卷
解题方法
5 . 关于函数
有下述四个结论:①
是偶函数;②
在
上是减函数;③
在
上有三个零点;④
的最小值是0.其中所有正确结论编号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3229b7c8fc5a096ea28f715cd3d003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3f81841df5843d6058e09161bb9c21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955fade76485dacdee5d82108d9c58c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
A.①②④ | B.②③ | C.①③ | D.①④ |
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6 . 如图,在四边形ABCD中,AD∥BC,AD=AB,∠BCD=45°,∠BAD=90°,将△ABD沿BD折起,使平面ABD⊥平面BCD,构成三棱锥A﹣BCD,则在三棱锥A﹣BCD中,下列判断正确的是_____ .(写出所有正确的序号)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/36bc39f2-a768-4eb3-aec4-a04127af96c4.png?resizew=277)
①平面ABD⊥平面ABC
②直线BC与平面ABD所成角是45°
③平面ACD⊥平面ABC
④二面角C﹣AB﹣D余弦值为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/36bc39f2-a768-4eb3-aec4-a04127af96c4.png?resizew=277)
①平面ABD⊥平面ABC
②直线BC与平面ABD所成角是45°
③平面ACD⊥平面ABC
④二面角C﹣AB﹣D余弦值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4d9ff190d74979422dae71751c6fba.png)
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2020-05-16更新
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1088次组卷
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6卷引用:天津市六校2018-2019学年高一下学期期中数学试题
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解题方法
7 . 如图,在空间四边形ABCD中,AB=CD=4且AB与CD所成的角为60°,E,F分别是BC,AD的中点,则EF_____ .
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2020-05-16更新
|
590次组卷
|
3卷引用:天津市六校2018-2019学年高一下学期期中数学试题
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解题方法
8 . 已知两个不共线的向量
,
满足
,
,
.
(1)若
,求角
的值;
(2)若
与
垂直,求
的值;
(3)当
时,存在两个不同的
使得
成立,求正数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8937c3810b5cb337886714262edb340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d68ead208086a3c8858656d6f0310e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e36c9c91220b0f2cbd4a48e8fa90e3d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e07c25df57a36d4f1b11d7d9fe16b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d09af40eefe430eac4ccd3fe7a759eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f11ac1bd265894c8057f665c203051e.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd0f1e3e3b41948f1b3d287c4b0cb44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43b4078d7e44737a1708c0445288eb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-05-15更新
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255次组卷
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2卷引用:山东省潍坊市安丘市实验中学2019-2020学年高一下学期期中考试数学试题
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9 . 在
中,角
,
,
的对边分别为
,
,
,
.
(1)求角
的大小;
(2)已知
,且
的外接圆的半径为
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/9cc61aa175f5490b986dec05f5c29769.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ebfd659712ccc68f56d0d99d1289dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8e2b380189700530b3352b501c532d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e41211eef74318dbf464acf1a716fdd.png)
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2020-05-15更新
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192次组卷
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3卷引用:湖北省武汉市武昌实验中学2019-2020学年高一下学期3月月考数学试题
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10 . 函数
在
上的单调减区间为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68225b4c75b602a5dec9727630f7d4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a9845c78cb0cdedddefb2c0309a86e8.png)
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