Question

Consider a unit circle C in the xy plane, centered at the origin. The value of the integral $\oint$[(sin x - y)dx - (sin y - x)dy] over the circle C, traversed anticlockwise, is

• A. 0
• B. 2π
• C. 3π
• D. 4π

Answer 1

Answer: (B)

2π

Answer 2

The correct answer is (B) : 2π