Graphing Trigonometric Functions sin x, cos x and tan x

#trigonometricfunction #graphing In this video, we look at how the sketch of the trigonometric graphs y = sin x, y = cos x and y = tan x was derived from the definition of the trigonometric functions using the unit circle. The graph y = sin(theta) is derived from tracking the change in the y-coordinate as the angle theta rotates around the unit circle. The graph y = cos(theta) is derived from tracking the change in the x-coordinate as the angle theta rotates around the unit circle. The graph y = tan(theta) is derived from tracking the ratio y-coordinate/x-coordinate as the angle theta rotates around the unit circle.