Trigonometric functions describe relationships between angles and side lengths in right triangles and are fundamental in periodic phenomena, wave motion, and engineering applications. Their inverse ...

Definition: Arctan is the inverse function of the tangent function which is the ratio of the side opposite an angle divided by the side adjacent to the angle (i.e., tan = opposite/adjacent). It is ...

Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing angle in a right-angled triangle when two sides are known. An understanding of the three ...