If x =2+√3 , find the value of x square + 1/x square
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x = 2 +√3
1/x = 1/(2 +√3) = 2 -√3
x² + 1/x² = (x +1/x)² -2
= (2+√3 +2 -√3)² -2
=16 -2
=14
1/x = 1/(2 +√3) = 2 -√3
x² + 1/x² = (x +1/x)² -2
= (2+√3 +2 -√3)² -2
=16 -2
=14
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