1 . 某歌舞厅的迪斯科球体积为
(立方米),其表面上有A,B,C,D四点构成一等腰梯形,
,
,则该迪斯科球的球心到面ABCD的距离为__________ 米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65cdc157de69df961bb4a08f28256d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43b512a76deb8955f7c3d84d6170d34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/9393b1b3-a439-4222-8733-a82e4c2bb52e.png?resizew=150)
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2 . 若复数z的实部为1,虚部与
的虚部相等,则复数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab5448db95570e9f973e03deb6b1af2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
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2022-05-15更新
|
135次组卷
|
2卷引用:湖北省鄂州市部分高中教科研协作体2021-2022学年高一下学期期中数学试题
3 .
中,已知
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fadd2e6f0aa16c2c466c904474ffc79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad1398c5c60229f89a704e2a25ba7f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
您最近一年使用:0次
4 . 已知
ABC中,
,
,
,D,E分别是线段AB,AC上动点,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/5/12/2977869345816576/2979684131733504/STEM/6a38ddfd-7987-41a7-b2c3-121d3cf1db5e.png?resizew=150)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e35f77ef99e6402157d38743e4ad1d.png)
![](https://img.xkw.com/dksih/QBM/2022/5/12/2977869345816576/2979684131733504/STEM/6a38ddfd-7987-41a7-b2c3-121d3cf1db5e.png?resizew=150)
A.![]() ![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若满足![]() ![]() ![]() |
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5 . 用斜二测画法画水平放置的平面图形的直观图时,下述结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/05587a4b-742b-4488-b4f6-bdbe3d5dfbc0.png?resizew=137)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/05587a4b-742b-4488-b4f6-bdbe3d5dfbc0.png?resizew=137)
A.梯形的直观图仍旧是梯形 |
B.若![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.菱形的直观图可以是正方形 |
您最近一年使用:0次
2022-05-15更新
|
895次组卷
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5卷引用:湖北省鄂州市部分高中教科研协作体2021-2022学年高一下学期期中数学试题
湖北省鄂州市部分高中教科研协作体2021-2022学年高一下学期期中数学试题(已下线)8.2 立体图形的直观图(2)-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)(已下线)第20讲 立体图形的直观图4种题型总结(2)第13章《立体几何初步》单元达标高分突破必刷卷(基础版)-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(苏教版2019必修第二册)(已下线)13.1.3 直观图的斜二测画法(2)
6 . 设复数
,
满足
,
,则关于复数
,
的说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8023fa05763c9fc89f83fac9408156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef015c99536d13f1386bbb9a1dcaecea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
A.![]() |
B.![]() ![]() |
C.![]() |
D.若![]() ![]() ![]() |
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解题方法
7 . 在锐角△ABC中,
为其外接圆半径,若有
,
成立,则∠C的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c212f9a0ccf3c2196ba29f3621758152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22da01f81cae8f9a4f8b6fbf2ad2c660.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知△ABC的外接圆圆心为O,
,
,则
在
上的投影向量为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b260f15098b80023771578905fa02c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d7a83dbe60a489e5105a8a3d8ef1a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 复数z满足
则复数z对应点位于第( )象限
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bf8e73fe6a44bac3309490a190e819.png)
A.一 | B.二 | C.三 | D.四 |
您最近一年使用:0次
2022-05-15更新
|
547次组卷
|
4卷引用:湖北省鄂州市部分高中教科研协作体2021-2022学年高一下学期期中数学试题
湖北省鄂州市部分高中教科研协作体2021-2022学年高一下学期期中数学试题(已下线)7.3.2 复数乘除运算的三角表示式及其几何意义(分层作业)-【上好课】2022-2023学年高一数学同步备课系列(人教A版2019必修第二册)新疆喀什地区英吉沙县2022-2023学年高一下学期素养大赛数学试题江苏省南京市六校2024届高三下学期期初联合调研数学试题
解题方法
10 . 已知
,
是两个不共线向量
与
共线,则t的值是( )
![](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/f0edcf61ac6bcaee88d9ebbaf577c9b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f42c3f21b33a3acfb942acf92ce80694.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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