Use green's theorem to evaluate the line integral along the given positively oriented curve. c cos(y) dx + x2 sin(y) dy c is the rectangle with vertices (0, 0), (5, 0), (5, 4), (0, 4)

By Green's theorem,

where is the region with boundary , so we have

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!