1.

If (x – 1/x = 1), then what is the value of \(\frac{1}{x}\left( {\frac{1}{{x - 1}} - \frac{1}{{x + 1}} + \frac{1}{{{x^2} + 1}} - \frac{1}{{{x^2} - 1}}} \right)\)?

A. ±√5
B. 2/5
C. ±2/√5
D. 4/(5 ± √5)
Answer» E.


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