3. (10 pts) Let x＞0 and △ABC be a triangle whose side lengths are 
. Choose a point P on 
, and a point Q on 
, and a point R on 
so that
Let f(x) be the area of △PQR . Find the critical point and the minimum of f(x).
阿摩線上測驗
登入
阿摩線上測驗
登入
3. (10 pts) Let x＞0 and △ABC be a triangle whose side lengths are . Choose a point P on , and a point Q on , and a point R on so that
Let f(x) be the area of △PQR . Find the critical point and the minimum of f(x).