Let (x) be a sequence of positive real numbers. which of the following are incorrect? lt xp x 0 then (x) converges. if x2x -x for all n e d then (x) converges.

Let (x) be a sequence of positive real numbers. Which of the following are incorrect? lt Xp X 0 then (x) converges. If X2X -X for all n e D then (x) converges. If (x) satisfies the Cauchy criterion, then there exists an a e 0 such that 0 < a 1 and (A) (B) (C) X s ax, - xfor all n e0. All of the above (D)