负指数幂(根号2-1)^-1

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负指数幂(根号2-1)^-1
负指数幂
(根号2-1)^-1

负指数幂(根号2-1)^-1
(√2-1)^-1
=1/(√2-1)
=(√2+1)/(√2+1)(√2-1)
=√2+1/(2-1)
=√2+1