名校
1 . 在三角形ABC中,
,D是垂足,则
推广到空间,三棱锥
中,
面
面
,O为垂足,且O在三角形BCD内,则类似的结论为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ea84c4b2735e2417c868e770276b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57993f1a74ba00fd159d3939d548557f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0df7daa3fde121d10ae8a33ffa39e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
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2 .
的值是________________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576f42b5689ea9e670657976f00633d3.png)
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3 . 复数
的虚部是________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b983d90983a1b87dbc1e37290c3af8.png)
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4 . 已知
(
是虚数单位),则
=______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7005c9130aca82b2cfe3899ac34e75a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
您最近一年使用:0次
2019-12-07更新
|
191次组卷
|
3卷引用:上海市通河中学2018-2019学年高二下学期期中数学试题
5 .
=______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f952dcc3f68202d0cf44918e99524e73.png)
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6 .
是实系数方程
的一个虚数根,则直线
与圆
交点的个数是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a970368baf14e0d4e4cde2dba5dd497b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33404aeb2d0f1b2ec9d2feeb3836c14c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d4e0ff2f771eb4657193ec1afba3f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f25834d8218c53cb975c2a2fe7442a.png)
您最近一年使用:0次
7 . 复数
(
为虚数单位),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03061a65be07ba520b4abbe6dd6fdfa5.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/931f0ea819ebe138c35584982c0c6efa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03061a65be07ba520b4abbe6dd6fdfa5.png)
您最近一年使用:0次
2019-12-03更新
|
233次组卷
|
2卷引用:上海市普陀区2019-2020学年高三上学期11月调研测试(0.5模)数学试题
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8 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55428b8e76e3b1032203b6acc42a779f.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa05b8af06d6229f75ef764b9f4b2ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55428b8e76e3b1032203b6acc42a779f.png)
您最近一年使用:0次
2020-03-19更新
|
152次组卷
|
2卷引用:上海市大同中学2020-2021学年高二下学期期中数学试题
名校
9 . 设复数
满足(
是虚数单位),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882bff376e1d71865bd23b747ef78a66.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce69dae5b6bfc32beeae22cf6a5e565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882bff376e1d71865bd23b747ef78a66.png)
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10 .
的平方根为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea35d370f7ec93c1ab203c7ae1beddc.png)
您最近一年使用:0次
2019-11-15更新
|
534次组卷
|
9卷引用:上海市嘉定区第一中学2018-2019学年高二下学期期中检测数学试题