Question

x=2+√3, find x-1/x and x^2+1/x^2

Answer 1

2√3, 14

Step-by-step explanation:

1/x=2-√3

x-1/x=2+√3-2+√3

=2√3

x²+1/x²

(x-1/x)²= (2√3)²

x²+1/x²-2=12

x²+1/x²=14

Answer 2

EXPLAINED CLEARLY IN THE PICTURE

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