(a) Given the recursive sequence aķ = ak-1 - k? +1 for all k > 1, and a1 = -4, find a2 and аз- (b) Compute the following sums using formulas from class. Do not try to compute something like 224. You may leave your answer in terms of big numbers like this. i. –23 + (-23)² +(-23)³ + ··. +(-23)1 75 ii. >ak if ar = 2k – 3 for all k > 1. Hint: Use properties of sums. k=1

Q: (b) Compute the following sums using formulas from class. Do not try to compute something like 224.…

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.