SubArea: Trigonometric equations and inequalitiesLevel: AProject ID: 1003085603Source Problem: 2010009801Accepted: 1Clonable: 1Easy: 1How many solutions does the equation \( \cos^2x = 0.25 \) have for \( 0\leq x\leq 2\pi \)?\( 4 \) solutions\( 1 \) solution\( 2 \) solutions\( 3 \) solutions
