Mark all answers that are correct (there might be more than one correct answers). O Every bounded sequence {Xn} in R has a subsequence {Xn, } that converges to some point in R. The sequence X,=/n+I-n, nENis Cauchy. There is a Cauchy sequence {Xn} in R that does not converge. O The sequence X,=exp(sin(n)), nEN has a Cauchy subsequence (Xn,) O Every monotonic sequence is Cauchy.

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