MathDB
Junior Regional Olympiad - FBH 2016 Grade 7 Problem 2

Source:

September 29, 2018
rootsalgebra

Problem Statement

If w=1+3+2313+23w=\sqrt{1+\sqrt{-3+2\sqrt{3}}}-\sqrt{1-\sqrt{-3+2\sqrt{3}}} prove that w=31w=\sqrt{3}-1