题目内容
已知△ABC的三边分别是a、b、c,其中a、b的长是方程x2–4(![](http://thumb.1010pic.com/pic7/pages/3030/0100/0079/67ae1a04349ae8e92bdd482fb81d2b78/A/image002.gif)
![](http://thumb.1010pic.com/pic7/pages/3030/0100/0079/67ae1a04349ae8e92bdd482fb81d2b78/A/image003.gif)
答案:
解析:
解析:
∵x2–4(![]() ![]() ![]() 又a>b,∴a=4 |