Hello, please help with this:

1. Compute 2 a" dA [/13 (x2 + 'y)2 where D = [0,1] x [1,2]. 2. Compute f/D ygex d3: dy where D: {(1,331) 6R2, 053/5 1, y $3: g 313}. 3. Write 9 3 ff v1+x3dmdy 0 a as a double integral over a domain D, which you should draw. Then, compute the integral by writing it as a dy do: iterated integral. This very useful technique is called changing the order of integration