Question

Double integrals change of order=>

∫∫ye^x dxdy + ∫∫ye^x dxdy

The first set on double integrals limits are:
x=1 to 0
y= 1/e to 0

The second set on double integrals limits are:
x=-ln(y) to 0
y=1 to 1/e

I need help on reversing the order of integtation .