名校
解题方法
1 . 已知无穷等比数列
中,首项
,公比
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cee45170ef38fc988fd04d1e223d94.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e3fc803117ae94861839984a0afef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cee45170ef38fc988fd04d1e223d94.png)
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2 . 如图,为了测量某建筑物的高度OP,测量小组选取与该建筑物底部
在同一水平面内的两个测量基点
与
.现测得
米,
20米,在测量基点
测得建筑物顶点
的仰角为
,则该建筑物的高度OP为____________ 米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](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/e720e101184647f20c062a492e5b67af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a836d2dfc31d2bfc949bac8403cf2a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
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解题方法
3 . 已知平面向量
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81555ce9f28be09335ce1f7d56cc58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460e5ba67828c57daf2edb497fb52e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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4 . 某图书馆有文化类图书300本,科学类图书400本,若甲从这两类图书中借阅一本,则不同的选法共有______ 种.
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昨日更新
|
147次组卷
|
3卷引用:山西省忻州市2023-2024学年高二下学期5月联考数学试题
名校
5 . 已知集合
,若“
”是“
”的充要条件,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc0982d002a381b91be1f775a40d5ae.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8723077870d8ad10b44c2bb53e2b4124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc0982d002a381b91be1f775a40d5ae.png)
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6 . 已知扇形的半径为2,圆心角为2弧度,则该扇形的面积为______ .
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7 . 简谐运动可以用函数
,
表示,其中
,
.则初相为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5560425727c95ea2e57e657fad919d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4cbc7b067862a3d9c6789b392fc068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
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8 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b729f3bcad3527fd911eb71de25a64f9.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b729f3bcad3527fd911eb71de25a64f9.png)
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9 . 一般地,函数
(其中
)的最小正周期是________ ,把
图象上所有点的横坐标缩短(当
时)或伸长(当
时)到原来的________ 倍(纵坐标不变),就得到
的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae26042cc00e3d363ac747ecd087f63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00288a55aeecf48d33cdc1277307c90d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219e526faaa7fb02d01ec55b947a9dfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8b79682b1872ca13d4d119adc01613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae26042cc00e3d363ac747ecd087f63.png)
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10 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994d6e7f47b3b98aa848c05d0af8f65e.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994d6e7f47b3b98aa848c05d0af8f65e.png)
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