a, b, c - the side lengths of a triangle
k - a positive real number
I observed that: , so CBS inequality seems a good idea, but what I tried to do didn't help me ._.
I want some indications. Thanks in advance.
a, b, c - the side lengths of a triangle
k - a positive real number
I observed that: , so CBS inequality seems a good idea, but what I tried to do didn't help me ._.
I want some indications. Thanks in advance.