解题方法
1 . 已知c=log30.3,b=30.3,a=0.30.4,则( )
A.a<b<c | B.a<c<b | C.c<a<b | D.b<c<a |
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解题方法
2 . 已知二次函数
,且
.
(1)求函数
的解析式;
(2)若函数
,
,求函数
的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/592744129d3499498fee320ae874645e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a67ef108cda76f6dd842bdf23d1ab6a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4187c6020919c626cc74fe82b5a6411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a349161b52f9493112280309454cd9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
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3 . 在平面直角坐标系
中,圆C的参数方程为
(
为参数),直线
经过点P(1,1),倾斜角![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c95fa7f61564978c8e26616bc14449e.png)
(1)写出直线
的参数方程,把圆C的参数方程转化为普通方程;
(2)设
与圆C相交与两点A,B,求点P到A,B两点的距离之积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ef09d524897bd8ea496d82bd24820e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c95fa7f61564978c8e26616bc14449e.png)
(1)写出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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4 . 已知全集
,集合
,集合
.
(1)求
;
(2)若集合
,且集合
与集合
满足
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940581e270411226564af4a44692077e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92674f2bdb43d7dd69c20c45b706f435.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab0a54771df984e3bd3da84a80cef43.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30da9531815632cc4aeed58d128edc12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dc8587831c053e64bf946cf7ec062f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
5 . 设函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fee44864cf991faf0a7f7b30eb502fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8811ba627e041616a9f8e062bb7264b3.png)
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
2021-02-08更新
|
72次组卷
|
2卷引用:新疆哈密市第八中学2020届高三上学期期中考试数学(文)试题
解题方法
6 . 已知
,
,
,那么
与
夹角的余弦值等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0052c82f162cba88164afa214aaa7c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e6bb24babdedf3877c466aa8a0d76c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdea6a7a96d6d1c283b7c441ae513ffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
您最近一年使用:0次
解题方法
7 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cedb12a251019de3487cb0e0607c6c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd5df1e37b6d2da9e3a2b49ad3fd930d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.(-1,0) | B.(0,2) | C.(-2,0) | D.(-2,2) |
您最近一年使用:0次
2021-02-08更新
|
24次组卷
|
2卷引用:新疆哈密市第八中学2020届高三上学期期中考试数学(文)试题
名校
8 . 已知函数
在
处的切线与直线
平行,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6322189643a010b433589c095a24f668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00a7c111ac9bfa251f43004c1ace7d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
A.8 | B.9 | C.10 | D.11 |
您最近一年使用:0次
2020-10-03更新
|
222次组卷
|
2卷引用:新疆哈密市第十五中学2021届高三上学期第一次质量检测数学试题
解题方法
9 . 已知7件产品中有5件合格品,2件次品.为找出这2件次品,每次任取一件检验,检验后不放回,恰好在第一次检验出正品而在第四次检验出最后一件次品的概率为______ .
您最近一年使用:0次
解题方法
10 . 如图所示,四边形
为菱形.
,
,
,
,
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/a47ef5fd-88fd-4f27-8e17-ae81bb47381d.png?resizew=153)
(1)证明:平面
平面
;
(2)若平面
平面
,求实数a的值.
(3)若
,求平面
与平面
所成二面角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b7af35a4b337ee57859c186abc0c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/277ad9925f187b4bd4e79e9a2c611c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e0bd4b30dc777ac9da80f6baa3eb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/a47ef5fd-88fd-4f27-8e17-ae81bb47381d.png?resizew=153)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39282bdf319f30d7bc261e2e3ab3b1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6501f1c913a4ef64957a2f01ab5baa15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6261790c66cc71ee3898afabad0c09f4.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
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