If a² -2a - 1 = 0, then a² + 1 ÷ a² =
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a2-2a-1=0
a2-2a=1
a(a-2)-1=0
(a-2)-1=0
a-2=1
a=1+2
a=3
put the value of a in a2+1÷a2
3^2+1÷3^2
=9+1/9 (÷ convert into/)
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