Let (x) be a sequence of positive real numbers. which of the following are incorrect ? (a) if x, x 0 then (x,) converges. (b) if kx< k x,l for all n e n then (x

Let (x) be a sequence of positive real numbers. Which of the following are incorrect ? (A) If X, X 0 then (x,) converges. (B) If KX< K X,l for all n e N then (x,) converges. 8. (B) (C) If (x) satisfies the Cauchy criterion, then there exists an ae R such that 0