Exercises 7982, find two systems of linear equations that have the ordered triple as a solution. (There are many correct answers.) 32, 4, 7

1 DOUBLE INTEGRALS OVER REGIONS 1 Double Integrals over Regions In this section we build o▯ what was covered in Math 126, namely with a review of double integrals, iterated integrals, integration in polar coordinates, and applications of double integration. 1.1 Double Integrals and Riemann Sums Recall that if y = f(x), then Z n b X f(x)dx = n!1 f(xj)▯xj a j=1 gives the signed area under the curve f(x) on the interval [a;b]. Now consider a function z = f(x;y) and a rectangle R in the xy-plane. Then ZZ f(x;y)dA R represents t