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(Solved): (1) Find the infimum (greatest lower bound) and the supremum (lowest upper bound) of the following s ...
(1) Find the infimum (greatest lower bound) and the supremum (lowest upper bound) of the following sets, if exist. (a)
S={xinR:x>0}. (b)
S={(1)/(n):ninN}. (c)
S={1-((-1)^(n))/(n);ninN}. (d)
S={(1)/(n)-(1)/(m):n,minN}. (e)
S={(m)/(m+n):m,ninN}.
