Question

if X + 1/X = 7 then x^2 + 1/x^2
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Answer 1

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Step-by-step explanation:

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Answer 2

Step-by-step explanation:

(x+1/x)²=x²+1/x²+2(x×1/x)

(7)²=x²+1/x²+2

49-2=x²+1/x²

●x²+1/x²=47 Ans.