名校
解题方法
1 . 体积为1的正三棱锥的外接球的半径与底面正三角形的边长比的最小值为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 已知实数a,b满足
,则下列数中不可能是
的值的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571ec6eb9d536fafa766d99f2ce052f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.![]() | C.2 | D.3 |
您最近一年使用:0次
名校
解题方法
3 . 已知非负实数
满足
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba96e16bcc3638214266c1b4b0ffc77.png)
A.![]() | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
7日内更新
|
1402次组卷
|
3卷引用:浙江省温州市十校联合体2023-2024学年高二下学期期中联考数学试题
名校
4 . 下列说法正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
名校
5 . 已知向量
,向量
与
为同向向量,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8d99b80103afd75127b08d10f72fc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2eedb5bb464c0aac6ece6acd404b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e3aae38a719cdc48e357cc0dfd927b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9d721c82360be2ab3d462b4023bb9d6.png)
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
名校
解题方法
6 . 在矩形
中,
,
,点
分别在边
,
上,满足
,
,若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d03acb29a5812acad760d564d6c84be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24678b8930e028717d008b1ef3627031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d593e778cb08266dedfc8a969a951770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f550df7467478ff491123abe9959bd8e.png)
A.4 | B.![]() | C.6 | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 已知
为正实数,且满足
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd98ce07e05c58d83a48d90dfcb28fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f008cea432b68934066d32243ccf69bf.png)
A.![]() | B.![]() | C.8 | D.6 |
您最近一年使用:0次
2024-05-30更新
|
861次组卷
|
2卷引用:湖南省湖湘教育三新探索协作体2023-2024学年高二下学期期中联考数学试题
名校
解题方法
8 . 已知数列
的前
项和
,当
取最小值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
______ .
![](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/8d4558d082c4423ceacf45a1c4c663ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4dd016fdf0e2f716421c8dd47911a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
您最近一年使用:0次
名校
9 . 对任意的
,
恒成立,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697da80270be67c88c6f742a75457d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 如图,在
中,
为线段
上靠近点
的三等分点,
是线段
上一点,过点
的直线与边
分别交于点
,设
,
.
,
,求
的值;
(2)若点
为线段
的中点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e4425dc7c346e4597c0521d7f636174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3605b320cae7b4a85aa273dfb7e606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441809d6ce2df21a85b390cdce9b1112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4641863be921b55a26e52cfb01e7bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52666519aa3622e65c157f072d3f8c34.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcaac97efa5492fc72fb0f773f0c4861.png)
您最近一年使用:0次