, where D is the solid in R3 bounded by the surface z = xy
and the planes x = y, x = 1, and z = 0.
I couldn't figure out the right limit.
but I tried, the inner one is from z=0 to z=xy
the middle one is from y=1 to y
the outter one is from 0 to 1
am i right?
if not , can anyone explain to me?