this is a graph to help people visualize sin, cos, and tan Sin = Sine is the Opposite / Hypotenuse Cos = Cosine is the Adjacent / Hypotenuse Tan = Tangent is the Opposite / Adjacent since Tan is the adjacent, 0 degree and 180 degree angles are undefined and can't be computed
me and some learning from https://www.mathsisfun.com/sine-cosine-tangent.html
