Question

see the attachment, please be patient, it takes me awhile to do.

Answer 1

Show it Sir.

Answer 2

my prof teaches me break the int-int into 2 parts like that, my question is can I do the same if the function is a sum like int- int v(v +u^3v)dA

Answer 3

about my problem 10, i made mistake at the first int, forgot divide by 3. I fixed it, thank you