The corresponding curves () A. There is only one common point B. There are two common points C. There is no common point D. the number of common points is determined by the parameter t

The corresponding curves () A. There is only one common point B. There are two common points C. There is no common point D. the number of common points is determined by the parameter t

From x = 2 + cost = 3 − Sint, we get (X-2) 2 + (Y-3) 2 = 1. The curve is a circle with (2,3) as the center and 1 as the radius, and X + y = 6, X ∈ [3,4] represents a line segment with (3,3) and (4,2) as the end points, and the point (3,3) is just on the circle (X-2) 2 + (Y-3) 2 = 1, so C, & nbsp; & nbsp; & nbsp; can be excluded; The graph shows that (3,3) is the only common point between straight line and circle, so B, D and a can be excluded