Video solusi : The accompanying figure show two x-y coordinate system. (The same unit of length is used on all four axes). In the coordinate system on the left, the curve is a portion of the unit circle x^2+y^2=1and A is the point (1,0). The points B, C, D, E, and F are located on the circle according to the information in the following table. are AB AC AD AE AF length pi/12 pi/6 pi/4 pi/3 5pi/12 Determine the y-coordinates of the points P, Q, R, S, and T. Give an exact expression for each answer and where appropriate, a calculator approximation rounded to three decimal places.