In evaluating a double integral over a region D, a sum of iterated integrals was obtained as follows: , f(z, 4) dA = f. J. 5 ) y f(x, y) dady +" f(x, y) dady . Sketch the region D and express the double integral as an iterated integral with reversed order of integration. 92 (I) f(x, y) dydx g1 (x) a = b 91 (x) = 92 ( a ) =