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1 . 正四棱台
,其上、下底面的面积分别为
,
,该正四棱台的外接球表面积为
,则该正四棱台的体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a0c3a4e61b97fa9bc58f3179fc2958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c258d2be23084686379c3c279f54ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9202af84bc055b58bd51fae5e3272283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/981099dc829282e8d6dfa137c1d83a80.png)
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2 . 在
中,
,
是边AC上一点,且
,
,若
为钝角,则当
最小时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e7ecde89911239d0972cfc1406b57d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d75a347fc94b884eda1e1e7848e35015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9ad150cb1e4cd8977d4cc3d99be17c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/591f688c933ffca281b3f78de6f3ae0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
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3 . 设甲乙两人进行羽毛球比赛,每局胜者得1分,负者得0分,比赛进行到有一人比对方多2分或打满6局时停止.已知甲乙两人在每局中获胜的概率均为
,且每局比赛胜负互相独立,则比赛停止时已打局数
的数学期望
为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf3baba074e8aeb6f3ea117865bbd1b.png)
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4 . 若函数
存在最小值,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cecab0f23c5ee439360b1225997cc11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 要从高二(16)班8名班干部(其中5名女生,3名男生)中选取3人参加学校优秀班干部评选,记事件
为“女生甲被选中”,事件
为“有两名男生被选中”,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9faccaa71316eb97aaf56af15365425.png)
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6 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e46d0336ea9893b942b928a9ee57a1c.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b90cb3ca8d27ff46a98e32867e8c86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e46d0336ea9893b942b928a9ee57a1c.png)
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7 . 若
,
,且
,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fcbdcb52d7b9e7c54d8382f42e278fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7dc87628c486529f615d51675515d98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dedab547d3f1d4824d6b68f88ef4e80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee4c25755e08df6c44fa0d2be441f709.png)
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8 . 已知虚数
满足:
为实数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac28c87f38c36dd6ec2b85f06c97c95.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36878d65579af444e0dcde7ed8785f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac28c87f38c36dd6ec2b85f06c97c95.png)
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9 . 已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/375599bb5af70a041f6cc340cd0f6b2a.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a321112ae2829a4783f7e4a1f022183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f6e1956dd6542e48294576b328f7b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/375599bb5af70a041f6cc340cd0f6b2a.png)
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10 . 在平面四边形
中,
,
,
,
,则四边形
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab4f318fd596282e1d965ab29bbf362f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59281d3136f2c67c078d98842171224d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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2024-06-03更新
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1344次组卷
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3卷引用:江苏省南京市2024届高三第二次模拟考试数学试题