Question 3. For each of the following sequences, (i) write a recurrence relation for the sequence and (ii) write a closed-form formula for the sequence for a domain of Z". Then, in (iii) and (iv), do it again for a domain of Z. Show your work and/or explain your reasoning. (a) -7, -14, -28, -56... (b)-10,-4, 2, 8. . (c) 8,-4, 2, -1,... *AX

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