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1 . 已知
是锐角三角形,内角A,B,C所对应的边分别为a,b,
若
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/476cc89dbf8b6b3e18005800c5a3a477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b292a8835d2b23ecc22bc2097eeb4f.png)
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2 . 已知i为虚数单位,若复数
满足
,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40351d6099f5f61ddefbac620493046b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab84fc5e5a4823e41a03da7740afcc7.png)
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3 . 已知向量
,
满足
,
,
.则
在
上的投影向量的模长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a593f5a5b0b6d5a3e4bb0481875af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8eafb341060b35ffaf7ec2c1e0f5c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6afa490635b593f15ffaa0bb49be485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
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4 . 如图半圆
的半径为1,
为直径
延长线上一点,且
,
为半圆上任意一点,以
为一边作等边三角形
,当
的大小为_______ 时,四边形
面积最大,最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07445aa3909818a3ef93bb01182f545f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902f97913e1af1e6c793f7edfe6b2114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08361173b096d18b33210a955e109f42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90d1f16f84c10769aaa7a6d87bea075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b978a095d4bac4da3a807575d9b35e8e.png)
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5 . 陶瓷茶壶是中国人很喜爱的一种茶具,不少陶瓷茶壶兼具实用性与艺术性,如图所示的陶瓷茶壶的主体可近似看作一个圆台型容器,忽略茶壶的壁厚,该圆台型容器的轴截面下底为10cm,上底为6cm,面积为
,则该茶壶的容积约为______ L(结果精确到0.1,参考数据:
;
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa574e9bd11e6f437175cccf618c87b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8639b0b48393b0a99719216160822336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17e2352d0c9ec14cb23b702efe5ba30.png)
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6 . 设
,
,
为虚数单位,若
是关于
的二次方程
一个虚根,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2bfd46447bdc5f025323d3cf5c008c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616097c2b64a0a2777aa38abc70d0e92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dffd64316ab5cd086e8b8dc8a5bfe994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
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2卷引用:福建省部分优质高中2023-2024学年高一下学期第二次阶段性检测数学试题
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7 . 一个母线长为2的圆锥的侧面积是底面积的2倍,则该圆锥的侧面积为______ .
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8 . 在
中,内角
所对的边分别为
,满足
,
是边
的中点,
,且
,则
的长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5458cf682081953c2d6ecdb13ca67291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a80d642494e68c4bd5219a7c67ffe5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb75557d217f59ef1f33e8da1ac0d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f47f2b6e8510964c9df2cc058891eb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f3107cdd4180a3b37b8a22d8ececbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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9 . 如图是梯形ABCD按照斜二测画出的直观图
,其中
,
,
,则原梯形ABCD的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7139f32092256a2e816d826d501be98a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1adaecdc48822336228a16ca4a384b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd69b5606f39af84f1d8da4bd6eab04a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b035ac3ca558e055af5aa248b516a8.png)
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10 . 如图,已知正三棱柱
的底面边长为
,高为
,一质点自
点出发,沿着三棱柱的侧面绕行一周到达
点的最短路线的长为______________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78d0ab561d0c9bb9099772c596af8bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a9eed64d225267a58cd001db67e2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
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