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A^2+2+1/a^2 = (a)^2 + (2*a*1/a) +                           (1/a)^2i.e it is the identity (a+b)^2 = a^2 +2ab+ b^2
Therefore,  it equals to (a+1/a)^2  ---------------- 1.
when 1. is divided by a+1/a then we get a+1/a

0 0 0
do not mind the space created in the first line.
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