1 . 在
中,角A,B,C所对边分别是a,b,c,若
,
,
,则最小角的余弦值=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1ec9c5eaed4c211a040a2a33fb7c91.png)
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2 . 若虚数
是关于
的实系数方程
的一个根,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec98bcde0ea979514029766fc7656aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1ba2fe89f49d46f0b2e37eccbaf22c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
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3 . 四面体ABCD中,
,AC=2,M、N分别为BC、AD的中点,MN=1,则异面直线AC与BD所成的角是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e46571701ccaa18d3c844ab99ee6c30e.png)
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4 . 在棱长为1的正方体
中,E,F分别为
和
的中点,
是侧面
内一点,若
平面
,则线段
长度的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183d4a4db2be531d09a180b36515ff75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5563473602e1b17d582a165b7b7b6b2.png)
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5 . 给定正实数
,对任意正实数
,记
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/466e24c8222f8a6465e7b663c4d8967f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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6 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a21abf310aedeb68b86c4f0ebb321519.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7a4449811c2b9458f7f55193e58310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a21abf310aedeb68b86c4f0ebb321519.png)
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7 .
为平面内一定点,
,
,
与
夹角为
,
,
,
,则
所围成的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d4468fdd6b09858b6f6d814a50c2ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47dd5cb80d13a524058f9d7dac5f239b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2780422eefb9e85b89074a1ba2a159d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433a8c622b44e1aa29e9989e6978dd7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a18f62ab853ee8ea162142373dc747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450dc33f83aec5f1b6471b3e0d0fca76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eeafaa6479bcc807813868a124b56ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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8 . 若不等式
对任意满足
的正实数x,y,z均成立,则实数
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd5f49921ccf042d0ee58e615f207d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b0732e44118f70424021d023f328e3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2024-06-15更新
|
282次组卷
|
2卷引用:浙江省强基联盟2023-2024学年高二下学期5月期中考试数学试题
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9 .
的展开式中的常数项为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377f05eb0c15ccc9c60cb5f0183cdb66.png)
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10 . 在锐角三角形
中,边
长为1,且
,则边
的长度取值范围是______ .
![](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/baa8d75a6638e08eedbff8662267da6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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