Since the point in the second quadrant is (-0.74, 0.67), then
sin x will be the value of the y-coordinate

cos x will be the value of the x-coordinate

Since the radius of the unit circle is 1, then
tan x will be y-coordinat/x-coordinate

Since the point on the unit circle for y is (0.53, 0.85), then
tan y will be y-coordinate/x-coordinate
