名校
解题方法
1 . 已知
,
为锐角,
,
,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/d2ef621a4cd31fddac154c86247dc0c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2423d7813df9470ca48c6227620f224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
您最近一年使用:0次
2016-12-04更新
|
759次组卷
|
6卷引用:辽宁省阜新市阜蒙二高2017-2018学年高一下学期期中考试数学试题
解题方法
2 . 锐角三角形
满足
,则
的取值范围为_________
![](https://img.xkw.com/dksih/QBM/2016/9/6/1572999675469824/1572999681318912/STEM/488d1009e8b94c8491ea9a40fed57482.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2016/9/6/1572999675469824/1572999681318912/STEM/ab8ee3cd43c944e58ca85cbf799e73fb.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2016/9/6/1572999675469824/1572999681318912/STEM/e7ec85ce74b7484cb2522a5936bff912.png?resizew=76)
您最近一年使用:0次
3 . 已知
,则tanα=______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b37498dee684a1ffaf60d98fd96536.png)
您最近一年使用:0次
2016-12-03更新
|
616次组卷
|
3卷引用:辽宁省沈阳市城郊市重点联合体2019-2020学年高三上学期期中数学(理)试题