√(x²+1/x²-2)化简

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√(x²+1/x²-2)化简√(x²+1/x²-2)化简√(x²+1/x²-2)化简√(x²+1/x²-2)=√(x-1

√(x²+1/x²-2)化简
√(x²+1/x²-2)化简

√(x²+1/x²-2)化简

√(x²+1/x²-2)

=√(x-1/x)²

=｜x-1/x｜