Find curve integral:
where is a paralelogram with vertices at (0,0), (1,2), (1,3), (0,1)
solved
I'm glad you were able to solve it. For future reference, few people are going to help you with a problem where you have showed no work of your own at all.
I assume you used
where C is the closed curve bounding the region R. Here the integrand on the right is a constant so the integral is that constant times the area of the parallelogram.