1 . 已知A(1,12),B(3,4),过点C(﹣1,0)且斜率为k的直线l1与线段AB相交,点D(0,1)到直线l2:3x+4y+k=0的距离为d,则实数d的取值范围是 __ .
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2021-11-20更新
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464次组卷
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6卷引用:四川省达州市2020-2021学年高一下学期期末数学(理)试题
四川省达州市2020-2021学年高一下学期期末数学(理)试题四川省眉山市彭山区第一中学2021-2022学年高二上学期入学考试数学试题(已下线)专题2.8 直线的交点坐标与距离公式-重难点题型检测-2021-2022学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)试卷10(第1章-3.3抛物线)-2021-2022学年高二数学易错题、精典题滚动训练(苏教版2019选择性必修第一册)沪教版(2020) 选修第一册 精准辅导 第1章 1.4 点到直线的距离(已下线)1.5 平面上的距离(练习)-高二数学同步精品课堂(苏教版2019选择性必修第一册)
名校
解题方法
2 . 已知函数
在
上是减函数,若
,
,
,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbdd006d6c6aa4c00282f564718a03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/141da3d07d2d971a2ea30dfebcf0385f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4823c686cc44b31947e06347255174e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a48bf2ec7f2a874b67d9053e9f81a0.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)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
3 . 已知
的内角
,
,
所对边分别为
,
,
,若
,
,则
( )
![](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/87fc28211ea37583f9a0e63be4fd8b25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc20d351d51723c9b0a07a20ac14114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-08-14更新
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332次组卷
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2卷引用:四川省达州市大竹县大竹中学2020-2021学年高一下学期期中数学(文)试题
名校
解题方法
4 . 记
为数列
的前
项和,
(
).
(1)求
;
(2)令
,数列
的前
项和为
,证明对任意
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f9f3f64106af9ab31966ffd44913a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c509f686d3fcfa722a28e115dade534b.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0846ab503f3451d5dd0cef4852cc0bd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9928e46511e601913619a427ded84a3.png)
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解题方法
5 . 函数
在区间
内单调递增,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bd1a53258ed670514e1a3abc69862a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38a11ad69d3d4456ce24b164e07add83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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6 . 已知函数
,
.
(1)求函数
的最小正周期;
(2)将
的图像向左平移
个单位得到函数
的图像,求
的单调减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a8af8cae82d4d35ae1c3fe57f55ef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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2021-08-12更新
|
568次组卷
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4卷引用:四川省达州市大竹县大竹中学2020-2021学年高一下学期期中数学(文)试题
四川省达州市大竹县大竹中学2020-2021学年高一下学期期中数学(文)试题(已下线)第12讲 函数y=Asin(ωx+ψ)的图象-【帮课堂】2021-2022学年高一数学同步精品讲义(人教A版2019必修第一册)吉林省长春市东北师范大学附属中学2021-2022学年高三上学期第一次摸底考试(10月)文科数学试卷黑龙江省牡丹江市第二高级中学2022-2023学年高三上学期8月月考数学试题
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7 . 函数
(
,
,
)的部分图象如图所示,则下列结论正确的( )
![](https://img.xkw.com/dksih/QBM/2021/5/18/2723788969590784/2784530116812800/STEM/6c83c9e2cab844b9a511f67474306717.png?resizew=187)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e2a383cb47eb87493e86c8c40caf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6af3e2115ce0aaf5b99ac70c4441d1.png)
![](https://img.xkw.com/dksih/QBM/2021/5/18/2723788969590784/2784530116812800/STEM/6c83c9e2cab844b9a511f67474306717.png?resizew=187)
A.![]() | B.![]() |
C.![]() | D.![]() |
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8 . 如图所示,平面四边形
中,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/d1ad4c2d-b61d-419a-bfdc-6e62216c4b46.png?resizew=128)
(1)若
,求
;
(2)当
变化时,求对角线
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f144992e1cbee34868abce1e5ad38c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212bfbd5575772ca36d6fc3e7b246e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf10d92f20501e19d25f6f4159aab89.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/d1ad4c2d-b61d-419a-bfdc-6e62216c4b46.png?resizew=128)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684d2bbdd30443a7b73738d051d9a5dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d08f0ab6e573253450e03427e13db1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
2021-08-12更新
|
265次组卷
|
2卷引用:四川省达州市大竹县大竹中学2020-2021学年高一下学期期中数学(文)试题
名校
解题方法
9 . 如果
,且
是第四象限的角,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a9134b52345a166997f790bf40b774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
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10 . 半径为2的扇形
面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abf115faee4cdb2bbae6e2d1e01be3a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4966e5af166b69a0a38a98abf555b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abf115faee4cdb2bbae6e2d1e01be3a.png)
您最近一年使用:0次