(1 point) Find f(x, y) dA where f(x, y) R = [1,2] x [3, 9]. JR f(x, y) dA = = x and (1 point) Calculate the double integral SJR x cos(2x + y) dA where R is the region: (1 point) For the integral L* L* ezz dy da, sketch the region of integration and evaluate the integral. Your sketch should be approximately the same as one of the graphs shown below; which is the correct region? Graph 1 Then fe dy dx = Note: the value of the integral needs to be correct to two decimal places. Graphs: 1. (16) 4. 2. 3. N 5. 6.