Question

已知x^2=3,则(x+1/x)/(x-1/x)的值为多少?请给出详细的解答过程!

在20:30答复

Answer 1

(x+1/x)/(x-1/x)

=(x²+1)/(x²-1)
=(3+1)/(3-1)
=4/2
=2

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