[" 6.If "a,b,c,d" and e are +ve numbers ...

[" 6.If "a,b,c,d" and e are +ve numbers then."],[[" (A) "," (且) "((a)/(b)+(b)/(c))((c)/(d)+(d)/(e))>=4sqrt((a)/(e)),((a)/(b)+(c)/(d))((b)/(c)+(d)/(e))>=4sqrt((a)/(e))],[" (e) "," ( "(a)/(b)+(b)/(c)+(c)/(d)+(d)/(e)+(e)/(a)),>=5," ( ")" ( "]]

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