plese answer it i will mark as brainliest
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Explanation:
a-1/a=6
square both side
(a-1/a)^2=(6)^2
a^2+1/a^2-2*a*1/a=36
a^2+1/a^2-2=36
a^2+1/a^2= 36-2
a^2+1/a^2=34
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