名校
解题方法
1 .
内角
,
,
的对边分别为
,
,
,若
,
,则
的面积为_____________ .
![](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/e182f183fc39883cf30bd91a7858fa87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09d3176074ac8b37cccdea181f1dffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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昨日更新
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140次组卷
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2卷引用:福建省漳州市龙文区2024届高三6月模拟预测数学试题
名校
解题方法
2 . 在圆台
中,圆
的半径是2,母线
,圆
是
的外接圆,
,
,则三棱锥体积最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2899e607479d8d1c47d954ae9ebb7144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d81d732204a3c2384a27606f858677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
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名校
解题方法
3 . 已知数列
是等差数列,
,记
,
分别为
,
的前
项和,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f6d2f9704c53877827f4bb0e3bb6844.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f95ba1442d5c2c50293d66c499afe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41be41a5a4965ebd346e7ee74d21f0f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9bd5f5348f0281449061b81b9d2d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f6d2f9704c53877827f4bb0e3bb6844.png)
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2024-05-31更新
|
762次组卷
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2卷引用:福建省漳州市第三中学2024届高三下学期高考全真模拟考试数学试题
4 . 记锐角
的内角A,B,C的对边分别为a,b,c.若
,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec69ee77602f3dbff59a6d23d57f9f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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2024-05-29更新
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734次组卷
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2卷引用:福建省厦门市2024届高中毕业班第四次质量检测数学试题
名校
解题方法
5 . 在
中,角
,
,
的对边分别为
,
,
,
,
的平分线交
于点
,且
,则
的最小值为______ .
![](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/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb08f6a798dc293f3d8de281190f65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451be539a00c5a0fa9e00fc9bf4c39fd.png)
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2024-04-26更新
|
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5卷引用:福建省厦门双十中学2024届高三下学期高考热身考试数学试题
福建省厦门双十中学2024届高三下学期高考热身考试数学试题【校级联考】湖北省2019 春“荆、荆、襄、宜四地七校考试联盟” 高一期中联考数学试题江西省吉安市吉水县第二中学2020-2021学年高一下学期期中考试数学试题(已下线)第15讲 解三角形中角平分线中线内切外接圆问题(已下线)FHgkyldyjsx09
名校
6 . 在
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78363dd37fefe1bc5d98a6170149ad90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
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2024-04-18更新
|
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3卷引用:福建省安溪第八中学2024届高三下学期5月份质量检测数学试题
2024高三·全国·专题练习
名校
解题方法
7 . 德国大数学家高斯年少成名,被誉为数学王子.他年幼时,在
的求和运算中,提出了倒序相加法的原理,该原理基于所给数据前后对应项的和呈现一定的规律而生成.此方法也称为高斯算法.现有函数
,设数列
满足
,若存在
使不等式
成立,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c5cd89177a3934552efa0d7180e7cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a6064341667c54815c299cdc19984c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c22c1aabc3409c7465c0445ea08e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a538f32441f92160919d9d51e396f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
8 . 如图,某城市有一条公路从正西方向
通过路口
后转向西北方向
,围绕道路
打造了一个半径为
的扇形景区,现要修一条与扇形景区相切的观光道
,则
的最小值为_______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26016c9a610be4da74086a37c3327d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/19/05929a07-c265-4c47-a51f-60d2e676b353.png?resizew=161)
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名校
解题方法
9 . 如图,点
是边长为1的正六边形
的中心,
是过点
的任一直线,将此正六边形沿着
折叠至同一平面上,则折叠后所成图形的面积的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2024-03-12更新
|
1145次组卷
|
5卷引用:福建省莆田市2024届高三毕业班第二次教学质量检测数学试卷
名校
10 . 已知
的内角
的对边分别为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858850da3c7cf2285208d36cfc110036.png)
__________ .
![](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/b783bbd05ecab4a4cdf4386408256ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858850da3c7cf2285208d36cfc110036.png)
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2024-03-12更新
|
1894次组卷
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6卷引用:福建省莆田市2024届高三毕业班第二次教学质量检测数学试卷
福建省莆田市2024届高三毕业班第二次教学质量检测数学试卷吉林省通化市梅河口市第五中学2024届高三下学期二模数学试题上海市交通大学附属中学2024届高三5月阶段测试数学试卷天津市武清区杨村第三中学2023-2024学年高一下学期第一次过程性评价数学试题(已下线)专题11.1余弦定理-重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)6.4.3.1 余弦定理——课后作业(基础版)