Evaluate

If
(a) C is the square path (0, 0) to (1, 0) to (1, 1) to (0, 1) to (0, 0);
(b) C is the triangular path (0, 0) to (2, 0) to (2, 1) to (0, 0);
(c) C is the circle x2 + y2 = 1 traversed in the clock wise direction?

Transcribed Image Text:

xy dx + (x + y) dy