find the value of x^2+1/x^2, if x-1/x=√3
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given- x-1/x = √3
identity used a-b^2
√3^2 = x^2 + 1/x^2 - 2
3 = x^2 + 1/x^2 - 2
x^2 + 1/x^2 = 5
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