名校
1 . 在
中,若
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54028f07f1e039fc140aac0d6c3bf86a.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 《周髀算经》中给出了弦图,所谓弦图是由四个全等的直角三角形和中间一个小正方形拼成一个大的正方形,若图中直角三角形两锐角分别为
、
,其中小正方形的面积为
,大正方形面积为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
A.每一个直角三角形的面积为![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 已知
,且
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a135466eb8ca64d002d0fad36176d1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9edf79d1b9505876a946f949b3d04593.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850dba25bf0f5f13541bf9b6ec12b84d.png)
您最近一年使用:0次
名校
解题方法
4 . 已知
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed53925cace8212e87a4d3bad6463718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe5061b201bdef56cceee393f6b7c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c7f877c7e03ad9862edcc624f221cc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/837c6148db0f717719c4db89caf632fe.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c33e9999459ef9cbd27a059bb0c5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c118e07d9fa49405045614ef32f8c8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 已知
为第一象限角,
为第二象限角,且
,
,则
的值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9eb14cda08256a38003a2f368a2f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/717d7f48e2a1fb6687bd6ea84d249915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fee7e2969987222954a10a03d200c03.png)
您最近一年使用:0次
名校
解题方法
7 . 已知
,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de82a08494df612b8a7606025d90d180.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636783ef0ad5388660fbd4b2004c4f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eda68401837c72c8a4a151b62558c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a571e1001efc09f845cb9826e031f430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d6ab606fb600ac1ce35f38de14a1a6.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
8 . 在条件:①
;②
;③
中任选一个,补充在下面的题目中,并求解.
已知
,且满足条件______.
(1)求
的值;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99b27b991181271d728cd2f2df78fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01abbf24cb877b763aea5d8b0200312b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf62b180b404b737623e5eedf2bccee0.png)
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc9cfe7478a6a861fdbc632936f9522.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4952773d616eba12475a5446ad347bfb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be2e0a0816bc26d430622d24909ef97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ae567e9e9ab991baf76be53b70bd18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
您最近一年使用:0次
名校
解题方法
9 . 以
为始边作角
,角
的终边与单位圆交于点
,将角
的终边逆时针旋转
得到角
,角
的终边与单位圆相交于点
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0927d11bcf2658adacb4d49ae12a4f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f5adf13b4214666292dd64b947741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af405a054bfe7fb7ce40e48d816467e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de82aff5049dce8a3d56291dc2ae4af.png)
您最近一年使用:0次
名校
解题方法
10 . 已知
为钝角,且
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6c1b28cdf7c6ce783154e05b57b2c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a78d7cee1769295ccf05c1c87e240b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9fcaa804011c37873b03ee284504fe.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次