MathDB
Solve the Trigonometric Equation

Source: 1984 National High School Mathematics League, Exam One, Problem 10

February 22, 2020

Problem Statement

All solutions of cos⁡x=cos⁡x4\cos x=\cos\frac{x}{4} are________, it has_________different solutions in (0,24π)(0,24\pi).
Back to ProblemsView on AoPS