(b) Figure 4(b) shows a line: y = x intersects with a circle: x2+ y2 =4 at Point A Line: y = x Point: A (u, v) 0 X Circle: x2 + y2 = 4 Figure 4(b) (i) Calculate the coordinate at Point A. (ii) Given So (V4 - x2)dx = uv4-uz + 2sin -'(") Calculate the shaped area enclosed by the circle, the line and the Y axis, [Hint : So ((V4 -x?) - x) dx]