Double integral question. HELP?

Question

double integral(x^2y+xy^2)dxdy where x=0x=1 and y=0 y=2

Answer 1

x xy^2 y + (x^3 y^2)/6

Answer 2

its your question, why ask us?

Answer 3

SS(x^2y+xy^2)dxdy where x=0x=1 and y=0 y=2

=S y x^3/3+y^2 . x^2/2  dy where x=0x=1 and y=0 y=2

=S y/3+y^2/2  dy    y=0 y=2

=y^2/6+y^3/6  y=0 y=2

=4/6+8/6

=12/6=2