2025高三·全国·专题练习
1 . 若实数
满足约束条件
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2a3bb3bd1bf87f61f17b7c22c6e282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c933f75333c29fe87468c5ab038edb79.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知b是
的等差中项,直线
与圆
交于
两点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20cda097a4e7c41100e573d8304ee066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f6e1f67dc15c3cf135a78af95c70fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99fd44ea14ac1cf7707062a5a6debd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
A.2 | B.3 | C.4 | D.![]() |
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2025高三·全国·专题练习
3 . 等差数列
的前
项和为
,若
,
,则
( )
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1ec50ff0c75ebb3d136144ddc8d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259b2e755105c0ee479eabf7265a76a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
A.![]() | B.![]() | C.1 | D.2 |
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4 . 在
中内角
所对边分别为
,若
,
,则
( )
![](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/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280e3d69e0c10d6a9ba6d4227b3f3d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe6e6b495c56a3618936dc96b91bf43.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2025高三·全国·专题练习
5 . 设
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67de6df56ce29f66f18dd5e04838d1bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23242c22f24a9782cfd6e896687d44d5.png)
A.![]() | B.![]() | C.10 | D.![]() |
您最近一年使用:0次
2025高三·全国·专题练习
解题方法
6 . 已知双曲线
的上、下焦点分别为
,点
在该双曲线上,则该双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad29d7c31087e13e266793832af17bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c7f66cac2517f8a68d82a12ca65f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8680fdb33fa1b9d30819518462191af.png)
A.4 | B.3 | C.2 | D.![]() |
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2024高一下·全国·专题练习
7 . 化简:
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643927e13d5307aeac685162b2a9e1bf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
8 .
的内角
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/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/82986ab38a4ae58593191ccae2a44f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8242f3a6a00149f6211bfce2dfc5c4ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.6 | D.12 |
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2024高一下·全国·专题练习
9 . 为了得到
的图象,只要将函数
的图象( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90364628ab9687610b3bef455833502e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c22908a8906d24771fb0254d4e3513.png)
A.向左平移![]() | B.向右平移![]() |
C.向右平移![]() | D.向左平移![]() |
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名校
解题方法
10 . 设
,则“
”是“复数
为纯虚数”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9322dd8f56b5f8d2c667fdf0d4a9f9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e787f56c11508f816448e7d1d0d75057.png)
A.充分必要条件 | B.必要不充分条件 |
C.充分不必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次