Recent content by princessp

okay i think that's where i am having trouble. I an not good at drawing the graph

Homework Statement Use the change of variables to evaluate the integral (x +y ) sin(x -y )dA, where R is the region enclosed by y = x, y = x - 2, y = -x and y = -x + 1. (Hint: use u = x + y and v = x - y Homework EquationsThe Attempt at a Solution Not sure how to start it

thanks :D

can you guys please elaborate on this?