名校
1 . 已知
,若
,使
成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c43f45b7b6ad276af317b62deb0403aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd19790a2ff5a3f0e4bbb4770cbfeca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
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2 . 如图,在扇形AOB中,
,
,点C在扇形AOB内部,
,
,则阴影部分的面积为______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eb76fe74cba30f7cbcde349ba80da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8ea58dc45bf719fa679db2ffa8a9a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451156790ac81457a25bdfa06d867233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0590b80055f283b90bac195d99ccd44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c901bcdfa58f0c68ad0161b0bab269.png)
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解题方法
3 . 已知
,
是第四象限角,则
的值为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57444ead804245890b18f4b8a2b4e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87a846fe363e4ae184c75f759b29c75.png)
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4 . 如图,某货轮在A处看灯塔B在货轮的北偏东
,距离为
海里,货轮由A处向正北航行到D处时,再看灯塔B在北偏东
,则A与D间的距离为________ 海里.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a4c9b697e3df2b5469b71d3b5e47a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f52f128086257ab7513889dbf6c7550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
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5 . 在
中,
,
是
上的一点,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f381b0b52ba24569a5d81183fa0e29db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
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7日内更新
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86次组卷
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2卷引用:甘肃省庆阳市庆城县陇东中学2024届高三下学期第二次月考数学试卷
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6 .
用弧度制表示为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/109f6318210d27ddc56fa6d9b9fd0656.png)
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2024-06-08更新
|
193次组卷
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2卷引用:甘肃省陇南市第一中学2023-2024学年高一上学期期末考试数学试题
7 . 我国许多地方都有风格迥异的古塔.现在在某塔底共线三点
处分别测得塔顶P点的仰角为
,
,
,且
,设该塔高为
,示意图如图,则该塔高![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5516a7ad03e49c26d9a6303365664fb.png)
________ m.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de303eb9ff8ccfc0b6ebdf8380456fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5516a7ad03e49c26d9a6303365664fb.png)
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8 . 在
中,内角
的对边分别为
,且
,则
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164746e495092ad6079513e13644f093.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9250970c478897db0bff852beb38e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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9 . 在
中,角
所对的边分别为
,且
的外接圆半径为1,若
,则
的周长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/278d85cb534b3b785f05b37c9cf7f34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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10 . 如图,在平行四边形
中,
,
,且
交
于点
,现沿折痕
将
折起,直至折起后的
,此时
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019e0ac78dac247c179339fdf10605d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99815b86a6a44274b28393750c545249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51b89f545616ef48f3706850107ad95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e5e61804ce550636a0354e0a78a22d.png)
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2024-05-22更新
|
233次组卷
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2卷引用:甘肃省武威第六中学2023-2024学年高三下学期第五次诊断数学试卷