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解题方法
1 . 如图,长方体
的顶点A在平面
内,其余顶点均在平面
的同侧,
,
,
,若顶点B到平面
的距离为2,顶点D到平面
的距离为2,则顶点
到平面
的距离为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3e58edd1f900ca82bb2a3058293f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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解题方法
2 . 复数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62967cd64ab74a5df90a98127ce08aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35845a775881218a4d0a4944dee85ed9.png)
A.1 | B.2 | C.![]() | D.![]() |
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3 . 下列等式成立 的有( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 在平面直角坐标系
中,已知点
,点
满足
.
(1)若
,求
;
(2)若
,求
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bd87e031fe14dd107f566643d306819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b721627f9d117577c15f9793f949b91.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbff7b09a866394e0539f5e4121b0ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c9d8c2239ab4666b91a8046950e13e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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5 . 设
是平面内两个不共线的向量,
,
,
,
.若
三点共线,则
的最小值 是___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9648ce4b023152feb3c2f1bce10dd45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10bd852a783902e337ce72a1c9ff5b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53147ff544242dd253e09f6a018d1588.png)
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6 . 在复平面内,复数
对应的点的坐标为
,且
为纯虚数(
是
的共轭复数).
(1)求m的值;
(2)复数
在复平面对应的点在第一象限,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31286bfff67998b19519fbfbe9d4519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2251a074c917edc797d7a2f9ae658d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcfebd9f5a57036e6df6b6e14865da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(1)求m的值;
(2)复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8ca5beec6862769b3027d7de4578de.png)
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7 . 把
称为
的二项展开式所有项的二项式系数之和,其中
是正整数.
(1)若
的所有项的二项式系数的和为64,求
展开式的常数项;
(2)若
展开式中第2项系数为12,求
的展开式中
的系数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c23c8d2a5a45dcc2cdecdfe5a41fdf32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5abcb3802cf02be93a8c89067bd49a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c05860c57c502eeb012697d7dd0709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c05860c57c502eeb012697d7dd0709.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c05860c57c502eeb012697d7dd0709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe4d516dd5e23d49595b8f5ef593c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d800f03de80068a1172beac3a2c75587.png)
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8 .
的展开式中
的系数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc109bcae48fc9d20e0323ca751f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
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2024-05-25更新
|
531次组卷
|
2卷引用:江苏省连云港市厉庄高级中学2023-2024学年高二下学期期中数学检测试题
名校
9 . 棱长为1的正方体
中,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 一盒中有6个乒乓球,其中4个白色,2个黄色,从中取 2个来用,设此时盒中剩下白色乒乓球的个数为
, 则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b01908eea36e1f42942a4630a7504e03.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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