Integrate G(x,y,z)equalsz over the parabolic cylinder yequalszsquared, 0less than or equalsxless than or equals2, 0less than
or equalszless than or equalsStartFraction StartRoot 15 EndRoot Over 2 EndFraction . Write the integral ModifyingBelow Integral from nothing to nothing Integral from nothing to nothing With Upper S Upper G (x comma y comma z )d sigma as a double integral. ModifyingBelow Integral from nothing to nothing Integral from nothing to nothing With Upper S Upper G (x comma y comma z )d sigmaequalsIntegral from nothing to nothing Integral from nothing to nothing nothing dz dx.