Question

If x=root (2 + root3 ) + then find value of x² + 1/x²? (A) 2 (C) 1 (B) 4 (D) 8
Pls give a worked on solution
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Answer 1

$x^{2} +\frac{1}{x^{2} } =2+\sqrt{3} +2-\sqrt{3} =4$

Hope you got it