Dive into a comprehensive 59-minute video tutorial that provides step-by-step solutions for a practice test on the law of cosines. Master solving oblique triangles using SAS (Side-Angle-Side) and SSS (Side-Side-Side) methods, and learn to apply the law of cosines effectively. Explore the derivation of Heron's formula and tackle problems involving area calculations for triangles given SSS. Work through 11 detailed problem solutions, each addressing different aspects of the law of cosines and related concepts, enhancing your understanding and problem-solving skills in trigonometry.