Evaluate if the followings are Cauchy sequences or not. (a) an= (-1)n (b) an= (-1)n/n (c)...

Evaluate if the followings are Cauchy sequences or not.

(a) a_n= (-1)ⁿ

(b) a_n= (-1)ⁿ/n

(c) a_n = n/(n+1)

(d) a_n = (cos n)/n

Expert Solution

Colby Messinger answered 1 year ago

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