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Consider the sequence given by a = 4 * 5-1.
A. Find the first 4 terms of the sequence.
₁ = __, ₂ = __, ₃ = __, ₄ = 500, dots.
What sort of sequence is this? _____.
B. Find the sum of the first 39 terms. That is, compute ∑139.


Sagot :