Chris N.

asked • 07/10/21# Series and sequences

Suppose that (b_n) is a sequence of real numbers such that:

(b_n) = (17, -21, 4, -2, 1...) and lim of b_n as n approaches ∞ equals 4

Find s = ∞ ∑ n=1 (b_(n+1) − b_(n))

If the series does not converge, enter 'DNE'.

s=

for clarification: b_n = b subscript n

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## 1 Expert Answer

The sum of differences is -b_{1}, i.e. -17

because all the terms in the sum of differences add out except for b_{1}

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Mark M.

Check post for accuracy!07/10/21