Resolvendo a integ mais interna integ0,3 de xyzdz= xy(z^2/2),em 0,3 xy/2(3^2-0^2)= (9/2)xy prosseguindo integ1,2 (9/2)xydy (9/2)xy^2/2,em 1,2 (9/4)x(2^2-1^2)= (27/4)x finalmente resolvendo a integral mais externa integ0,1 (27/4)xdx= (27/4)x^2/2 em 0,1 (27/8)(1^2-0^2)=27/8 integ procurada = ***(27/8).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.