名校
解题方法
1 . 已知四边形
中,
,设
与
的面积分别为
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80480d02e19f8df2dc8015a74dd02cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be89b91f05f281190209b1e876299d57.png)
您最近一年使用:0次
2024-06-12更新
|
298次组卷
|
2卷引用:四川省雅安市2023-2024学年高三三诊数学(理)试题
2 . 在等差数列
中,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77dc2f6f53df3eeda1fb1dd6b0bac8ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
A.21 | B.24 | C.27 | D.29 |
您最近一年使用:0次
2024-05-31更新
|
578次组卷
|
2卷引用:四川省雅安市2023-2024学年高三三诊数学(理)试题
解题方法
3 . 已知点
的坐标满足条件
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0059484a901c9fdbd4ee65c674f895d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ef5ee7f82e149ca734fc1548b03450.png)
您最近一年使用:0次
解题方法
4 . 已知数列
的前
项和为
.
(1)求数列
的通项公式;
(2)令
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba2ffc33a1204541711bbcf1c4551857.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1052c9ee8ebea29e9f0f3cd53ec7cb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52c9237cb0b4acc568d4afb12997186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
名校
5 . 已知
的三边长
,则
的面积为__________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4960f7870654160ca81e5751a41fa25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
您最近一年使用:0次
2024-05-11更新
|
487次组卷
|
3卷引用:四川省雅安市神州天立学校2024届高三高考适应性考试(三)数学(理)试题
6 . 设
的整数部分为
,则数列
的前30项和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7551413561d33f552d15b85ff933c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.465 | B.466 | C.467 | D.468 |
您最近一年使用:0次
7 . 若x,y满足约束条件
则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c2c2204dafed6d2a02fd91627bb113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
2024-04-24更新
|
104次组卷
|
2卷引用:四川省雅安市2024届高三下学期4月联考数学(理)试题
解题方法
8 . 已知
.
(1)若
,求b的取值范围;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6d9480b686da380941a1a4e2ee9d93.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ab573d12140a6c3bd663cab95c270a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b18e8e45c5b91a21978a9f9cfcf1886.png)
您最近一年使用:0次
2024-04-24更新
|
169次组卷
|
2卷引用:四川省雅安市2024届高三下学期4月联考数学(理)试题
9 . 设
的整数部分为
,则数列
的前
项和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7708009d1575f778b343a536be768503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
A.210 | B.211 | C.212 | D.213 |
您最近一年使用:0次
解题方法
10 . 已知
的内角A,B,C的对边分别为a,b,c,且
,
.
(1)求A;
(2)若D为
边上一点,且
,证明:
外接圆的周长为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa789357e4e75e17cffb8da5fe767b6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df7d77a2a83ad7e5c89036ef603d4bc.png)
(1)求A;
(2)若D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab845e0348cc7fbb7ad02f61869a5da2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3194dd5371160dae6bfbc300562410fe.png)
您最近一年使用:0次
2024-04-24更新
|
205次组卷
|
2卷引用:四川省雅安市2024届高三下学期4月联考数学(理)试题