Solving trigonometric equations in degrees Example. Solve the equation sin xcirc 05 where 0 le x textless 360. Mandarin Lessons Trigonometry Math The anterior cruciate ligament ACL is one of the most frequently injured structures of the knee joint Because of its key function as the primary restraint against anterior tibial translation ACL disruption inevitably causes alterations in knee kinematics which are most likely to result in secondary degenerative changes and long-term functional impairment 2 3. . Lets remind ourselves of what the sine graph looks like.