Question: Consider this sequence: 3, 7, 11, 15, . . . a. Is this sequence arithmetic or geometric? b. Write a recursive formula that generates the

Consider this sequence: 3, 7, 11, 15, . . .
a. Is this sequence arithmetic or geometric?
b. Write a recursive formula that generates the sequence. Use u1 for the starting term.
c. What is the 128th term?
d. Which term has the value 159?
e. Find u20.

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