名校
1 . 下列选项中,与
的值相等的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 若
,则
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8312c3f520f2c525a1dfe5347bcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 在
高的楼顶
处,测得正西方向地面上
两点
与楼底在同一水平面上)的俯角分别是
和
,则
两点之间的距离为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f631cfdf4666db95beb923072ced8d95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6b93dbe5272a5167ff4e2918bec864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de4720dff9a2358778c65d580a16cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c12aeebfa1af16f325c98a43bb08c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1006d62fa5723dc36286b8f5494f993e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6b93dbe5272a5167ff4e2918bec864.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe8aa086936ed76199007136a8545e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 下列等式成立 的有( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 已知
,
,
,那么M,N,P之间的大小顺序为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd52064c013cac1ad1fbd73b225872e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bc6892b49454d8a06167c67a77196fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9473ae5c4d2e1ac2bb40811801884972.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
7 . 在
中,点
在
边上,且满足
.
(1)求证:
;
(2)若
,
,求
的面积的最小值.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d1dfc401ebaa391b7035f19db9f4db.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e051da5c8aea7ef4a467bfaa07256b7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b2446b140a78f3ca1c6a5f44925193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解题方法
8 . 已知
,且
满足
,则
可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e268ada242c10d9d520fa7404222e300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad66cf6c00999be16628374b9771b483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f212373bbd06074dea0446c9425fdb5.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f212373bbd06074dea0446c9425fdb5.png)
您最近一年使用:0次
名校
解题方法
10 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd144bffb4b75dafaacf734fbd06ad1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfdfe7e6782c878a8d17918a94f23e13.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次