Final answer:
The point on the unit circle that corresponds to 0=pi/2 is p=(0,1).
Step-by-step explanation:
The point on the unit circle that corresponds to 0=pi/2 is p=(0,1).
On the unit circle, the angle pi/2 corresponds to the point (0,1) which has coordinates (x,y) = (0,1).
Since the x-coordinate is always the cosine of the angle and the y-coordinate is always the sine of the angle, for an angle of pi/2, the cosine is 0 and the sine is 1.