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solve this !!!!!!!!!!!!!!!!!! (Solved) June 15, 2015if x(sqr)+1/x(sqr) =a and x-1/x= b , where a and b are positive real, then minimum possible value which a/ b can have, A)2 root 2 B ) 2 C) root 2 D)4 plzz solve!!!!!!!!!!!!!!!!!!!!!!!!!

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x 2 + 1/x 2 = a (x – 1/x) 2 + 2 = a ……………1 x-1/x = b a/b = (x-1/x) + 2/(x-1/x) put , x-1/x = t then a/b = t + 2/t …………

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