名校
1 . 设复数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91bae572acb4fffa84e79e884bca0fae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
125次组卷
|
2卷引用:2016届云南玉溪市高三第三次教学质检数学(文)试卷
2 . 设复数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd17975528fe6c67254360b0a582b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d67321ace1e6b3be0fc0e5e8130022.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知
的内角
的对边分别为
,且
.
(1)求
;
(2)若点
为边
的中点,
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d75ef4b3cccc9c3895012c7fa3f95b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb08f6a798dc293f3d8de281190f65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
您最近一年使用:0次
4 . 如图,在
中,
是
的平分线,
的外接圆
交
于点
是
的切线交
于点
,且
.
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573018074513408/1573018080772096/STEM/c644ad437b9241739453a86b3782a3ff.png?resizew=333)
(1)若
为
的中点,
,求
的长;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01d787a57ebba1b7450baf76fa11356f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea689f88ec41c10dc1d13f8d0f241a45.png)
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573018074513408/1573018080772096/STEM/c644ad437b9241739453a86b3782a3ff.png?resizew=333)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ccf24d5a0b312d5e521d0db0c54e431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7558aa5068ceb3d3a35bf56422418dea.png)
您最近一年使用:0次
2016-12-04更新
|
155次组卷
|
2卷引用:2016届云南玉溪市高三第三次教学质检数学(理)试卷
5 . 如图,直三棱柱
,
分别是
与
的中点,且
,
,平面
平面
.
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573017743474688/1573017749209088/STEM/62ae10c156e7495498c3d75402cc495d.png)
(1)求证:
;
(2)求平面
与平面
所成二面角的平面角的余弦值的绝对值.
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573017743474688/1573017749209088/STEM/e8699895bb5244f48b44feeebe9ce3b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413a0e2f944dda03dcf1e0d4eef5ea7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2a700b3fe036ca2c315b897e8d6d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c986d5cf85bb0905e20ee4d02edd0d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8028d32218c69cf07ee50fa853911f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c67f52ce82617898939c0ab08b2f21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b3df7c6dd39543649650a32bdadf4f.png)
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573017743474688/1573017749209088/STEM/62ae10c156e7495498c3d75402cc495d.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af254745c1c19bd20e83344bee674ce7.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd9f47a64461ed9b70e2b56b8cd2d19.png)
您最近一年使用:0次
解题方法
6 . 各项均为正数的等差数列
.其公差
,前
项和为
,若
、
、
构成等比数列,则下列能构成等比数列的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
A.![]() ![]() ![]() | B.![]() ![]() ![]() | C.![]() ![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
2016-12-04更新
|
405次组卷
|
2卷引用:2016届云南玉溪市高三第三次教学质检数学(理)试卷
7 . 一个袋子里装有6个球,其中有红球4个,编号均为1,白球2个,编号分别为2,3.(假设取到任何一个球的可能性相同)
(1)现依次不放回地任取出两个球,求在第一个球是红球的情况下,第二个球也是红球的概率;
(2)现甲从袋中任取两个球,记其两球编号之和为
,待甲将球放回袋中后,乙再从袋中任取两个球,记其两球编号之和为
,求
的概率.
(1)现依次不放回地任取出两个球,求在第一个球是红球的情况下,第二个球也是红球的概率;
(2)现甲从袋中任取两个球,记其两球编号之和为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac22b784a16e23f1ea4a8d05f770235.png)
您最近一年使用:0次
2016-12-04更新
|
1175次组卷
|
2卷引用:2016届云南玉溪市高三第三次教学质检数学(理)试卷
8 . 圆
与直线
及
,都相切,圆心在直线
上,则圆
的方程为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1a686b80b8f109a929f58c2de7201d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcaada7649455fbebcdbdbb9a94e6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42498f6e0fc9a61c9857b70a87f02c5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2016-12-04更新
|
488次组卷
|
3卷引用:2016届云南玉溪市高三第三次教学质检数学(理)试卷
解题方法
9 . 边长为
的正三角形
,其内切圆与
切于点
为内切圆上任意一点,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7173b357dec0dca7d6da123345089741.png)
您最近一年使用:0次
2016-12-04更新
|
444次组卷
|
3卷引用:2016届云南玉溪市高三第三次教学质检数学(理)试卷
10 . 关于
的一元二次方程
,若
是从区间
任取的一个数,则上述方程有实根的概率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2d9e8e6ffcd788d1f1965025f1a26d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab90f84a9b6ec1334ce6fc12495ec218.png)
您最近一年使用:0次
2016-12-04更新
|
358次组卷
|
2卷引用:2016届云南玉溪市高三第三次教学质检数学(理)试卷