If x=3-2√2 , find the value of x²+1/x²
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given x=3-2√2
therefore x2+1/x2
=(3-2√2)^2+1/(3-2√2)^2
=2
therefore x2+1/x2
=(3-2√2)^2+1/(3-2√2)^2
=2
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