If (x-1/x)=9 then (x²+1/x²)
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Step-by-step explanation:
(x+1/x)^2+(x-1/x)^2=2(x^2+1/x^2)…………(1)
(9)^2+(x-1/x)^2= 2×53
(x-1/x)^2 =106 -81 =25
(x-1/x) = +/-(5) , उत्तर।
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