(a) As an iterated integral, A = B = C = Suppose R is the triangle with vertices (-1,0), (0, 1), and (1,0). [ (3x + (3x + 6y)² dA= R D = B D 1A = √₁² √² (3x (3x + 6y)² dx dy with limits of integration (b) Evaluate the integral in part (a). Hint: substitution may make the integral easier. Integral =

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