名校
解题方法
1 . 在长方体
中,
,点
为线段
上的一个动点,当
为
中点时,三棱锥
的体积为__________ ,当
取最小值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72dbab74f1c566463bb7d62f7f7775de.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f18dd8f5ae6a006d32ee70f9d9f638f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f69cff3b99b4c329d19844c85fcae09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d796777e02f20b6e90fc20e82115dc1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72dbab74f1c566463bb7d62f7f7775de.png)
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2 . 在
中,角
的对边分别为
,
,
,满足
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ad93ab5ccf290b22c83c542933e231.png)
______ ,
的面积最大值为______ .
![](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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23992da7b7214b54b4aba7f0fe5f7039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9222209f26591e0296576302dd058251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ad93ab5ccf290b22c83c542933e231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2023-10-09更新
|
761次组卷
|
3卷引用:重庆市七校2024届高三上学期第一次月考数学试题
3 . 如图,为了测量山高BC,分别选择山下平地的A处和另一座山的山顶M处为测量观测点.从A点测得M点的仰角
,C点的仰角
以及
,从M点测得
,已知山高
米,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2952b68243e0fd29a7178208e3d46da8.png)
________ ,山高![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
________ 米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42ac94c7c00b01d34a39e72cc4ee517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab926d89b65f26c12e3da73ef1e5cf68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a61ee9c2a3a4f2690dad01ef53ede1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26529682733f0a96074aec3bada5b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67c9d352d692286cdb4c88c51f3296b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2952b68243e0fd29a7178208e3d46da8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
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2023-06-16更新
|
254次组卷
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2卷引用:重庆市渝东九校联盟2022-2023学年高一下学期期中数学试题
4 . 在
中,
为
上一点,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b091b7f986b55574407646cc6ab97b8.png)
______ ;若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd1fcfad659e95da18c38e5eb157b8.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/499f02e624b84c5fa5d479d24a3ed99a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cb83b580d11e18af554f23054c60cf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b091b7f986b55574407646cc6ab97b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024a66125e89880977ca42753f86c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd1fcfad659e95da18c38e5eb157b8.png)
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2022-11-06更新
|
472次组卷
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3卷引用:重庆市南开中学校2023届高三上学期第三次质量检测数学试题
重庆市南开中学校2023届高三上学期第三次质量检测数学试题(已下线)浙江省衢州、丽水、湖州三地市2022届高三(二模)数学试题变式题11-16福建省厦门第二中学2023-2024学年高一下学期第一阶段考试数学试卷
名校
解题方法
5 . 为了给市民提供健身场所,某市因地制宜计划在-一个圆形的区域内修建一个如图所示的内接四边形健身步道
,其中A,B,C,D为休息点,AC,BD为便捷通道,现已知
,
,则
的最小值为___________ ;若
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87f3d9e79f0012fdb592df7dd2a8353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9f3646bf493d668cbccd5524dff81b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32450995497b9e341be832e9efad3114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76a0abdf3eea0772418890031971fb56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97e3555cd6c109962fecba3a677c5286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9e36c5987d6730e846753e0552c7d3.png)
![](https://img.xkw.com/dksih/QBM/2021/10/22/2834968765759488/2836347014742016/STEM/0da3e4e80afb4fc9b9c1455d13636881.png?resizew=171)
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2021-10-24更新
|
742次组卷
|
2卷引用:重庆市巴蜀中学2022届高三上学期高考适应性月考(三)数学试题
6 . 已知
中,角A,B,C的对边分别为a,b,c,若a=4,c=2,B=60°,则b=___ ,C=___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
7 . 在
中,内角
,
,
的对边分别为
,
,
,已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ ;若又知
的面积为S满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447a9718a502491b47072ce013c26a2f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce177f9015be3e290db1a2c08e661e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a507413211647e31571a232990bedef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447a9718a502491b47072ce013c26a2f.png)
您最近一年使用:0次
名校
8 . 四边形
中,
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa78cd723869b2458428a4c2f241e71.png)
________ ,
的最大值________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b0382c28547d3834ca71f3f0677695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffc2817fa590affb5a760a25dc65308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432cce1481829c4dfe2bd557f6e9aa4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa78cd723869b2458428a4c2f241e71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9ef7034db1f482ff4e6f2217efdaf8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/7cb2172c-79d9-404f-a3c4-0c27f28ed497.png?resizew=141)
您最近一年使用:0次
2020-07-27更新
|
299次组卷
|
2卷引用:重庆市第八中学2021届高三上学期一诊适应性考试数学试题
9 . 如图,在平面四边形
中,
的面积为
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386cda9f96731510d52ec18199e18286.png)
________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d09fc35a2c26cc47faea1232292b1d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42ee269d05195469aa5bf708dbdd34c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386cda9f96731510d52ec18199e18286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
![](https://img.xkw.com/dksih/QBM/2020/7/14/2505818408992768/2506387412189184/STEM/74d3f4d5-8ef7-4af8-9f6e-766941e74718.png)
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名校
10 . 已知
中,
,则
的最大值为______ ,最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a8bd2094772d745d9b97730b25acc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04494bb0cc95b6776570d971a4bf961a.png)
您最近一年使用:0次
2020-04-14更新
|
857次组卷
|
4卷引用:重庆市杨家坪中学2020-2021学年高一下学期第二次月考数学试题
重庆市杨家坪中学2020-2021学年高一下学期第二次月考数学试题浙江省温州中学2019-2020学年高三上学期期末数学试题(已下线)专题10 解三角形-冲刺2020高考跳出题海之高三数学模拟试题精中选萃(浙江专版)浙江省舟山中学2022届高三下学期4月市统考考前模拟数学试题