MathDB
|cos3x-tgt+ |cos3x+tgt|=|tg^2t -3|(V Soros Olympiad 1998-99 Round 3 10.2)

Source:

May 26, 2024
algebratrigonometry

Problem Statement

Solve the equation cos3xtgt+cos3x+tgt=tg2t3. |\cos 3x - tgt| + |\cos 3x + tgt| = |tg^2t -3|.