find the value of a²+1/a² if a+1/a=8
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Step-by-step explanation:
a+1/a=8
squaring on both sides
(a +1/a) sq .=(8)sq.
a sq.+1/a sq.+2×a×1/a=64
a sq. +1/a sq.=64-2
a sq.+1/ a sq.=62
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