Quiz on Trigonometric Functions of Special Angles

This example demonstrates how to use GeoGebra to evaluate trigonometric functions of special angles (multiples of pi/6 and/or pi/4 radians) with immediate feedback. Key math concepts include trigonometric functions, unit circle, special angle values, and vectors. The construction uses commands like Sequence, RandomElement, Numerator, Denominator, Random, Textfield, and SurdText. Suitable for high school students to practice and reinforce knowledge of special angle trigonometry, or for classroom demonstrations.