Question: Given an exact evaluation for each of the given sums. E=summation, I already have the solution I just need explanations
(a) Eni=1(n-2i+3)
(b) En-1i=0(4i2 - 2i + 7)
(c) Enj=1j
(d) Eni=1 Enj=1 j
(e) Eni=1 Enj=1(j - i)
I have the solution already but i do not understand it; I need expert to help through it step by step. thanks!