Apply Fubini's Theorem on a rectangular region to find out which of the following is/are true. The order of integration (keep in mind to write down the limits correctly while changing the order) of a function of two variables does not affect the value of the double integral when the function is continuous on its domain. The function must be continious on the rectangle if we want to apply Fubini's Theorem. 1 1 x - Y 1 1 dyd = / / - x -ddy (x + y) (x + y)