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I need these ASAP - due in 20 mins, just show work and answer please! 2. Expand the following sum (Note: You do not need

I need these ASAP - due in 20 mins, just show work and answer please!

2. Expand the following sum (Note: You do not need to evaluate the sum): 7 E(-1)*+1(k2 - 3) k=3 3. Compute the following sum: 14 E(-317 + 1) i=2 72 You may use the fact that n(n + 1)(2n + 1) 6 i=1

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