Find the area of the surface given by z = f(x, y) that lies above the region R. f(x, y) = va2 _x2 - x2 R = {(x, y): x2 + yz sa2} Need Help? Read It /1 Points] DETAILS LARCALC12 14.5.018. Find the area of the surface. The portion of the paraboloid z = 36 - x2 - yin the first octant Need Help? Read It /3 Points] DETAILS LARCALC12 14.5.028. Set up a double integral that represents the area of the surface given by z = f(x, y) that lies above the region R. f( x, y) = x2 - 4xy - y2 R = { ( x , y ) : 0