1)shouldn't it be
cannot we use "if a sequence is covergent, it is a Cauchy sequence"
Hey guys i study for my exams at Wednesday and i would appreciate some help here.
Based on "if for every ε>0, there is such that for all natural numbers
1)Prove that the sequence , is a Cauchy sequence
2) Prove that the sequence , is not a Cauchy sequence.
Thanks in advance...