Prove that `a^2+b^2+c^2\geqa^(4/3)+b^(4/3)+c^(4/3)`

• This is the problem that I picked from Vietnamese Problem Collection and translate in to Khmer Language for all you to study. For this problem, You can let's the basic parameter in order to reduce the power of `a, b, c` Which It lead you to be easy to solve this problem.

• Here are PDF file you can download : Download Here