Answer:
(cos π/4, sin π/4) or approx. (0.707, 0.707)
Step-by-step explanation:
The length of the blue ray is 1. That's the same for any ray drawn inside the circle.
Then a = cos π/4 and b = sin π/4.
The cartesian coordinates of the point (a, b) are
(cos π/4, sin π/4) or approx. (0.707, 0.707)