The Unit Circle, Basic Introduction, Trigonometry

A unit circle is divided into four quadrants making an angle of 90°, 180°, 270°, and 360° or π2, π 3π2, and 2π respectively

tan 30° = 1√3 To find this answer on the unit circle, we start by finding the sin and cos values as the y-coordinate and x-coordinate, respectively: sin 30°

unit731 Unit Circle for Trigonometry : Quadrant II: sin, csc positive Quadrant I: all functions positive Quadrant III: tan, cot positive Quadrant IV: cos, sec

unit 731 The unit circle concept takes any equivalence class of similar right triangles and represents the class using a single triangle with a hypotenuse of one The