Question: (6) (10 Marks) Let {a, ) , be a sequence. Prove that if {a, ) , is decreasing and not bounded below, then it is

(6) (10 Marks) Let {a, ) , be a sequence. Prove that if {a, ) , is decreasing and not bounded below, then it is divergent to -co. Do a proof directly from the definition of these concepts

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