Remember when you had to find the angle in right-angle triangles using sine, cosine and tangent functions? Yep, those are real functions that you can sketch and use in algebra! This section will deep dive into these functions so we can understand them better! This is part of the Prelim Maths Extension 1 Syllabus from the topic Trigonometric Functions: Inverse Trigonometric Functions. In this post, we will explore inverse trig functions.