answer this from expansion
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given-> a+1/a=2
(a⁴+1)/a²
=a⁴/a²+1/a²
=a²+1/a²
=a(a+1/a)
=a(2)
=2a
(a⁴+1)/a²
=a⁴/a²+1/a²
=a²+1/a²
=a(a+1/a)
=a(2)
=2a
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