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February 1, 2015

February 1, 2015

Posted by **Sam** on Wednesday, May 14, 2008 at 10:54pm.

- Algebra -
**Reiny**, Thursday, May 15, 2008 at 12:00am(a/b)^(-n) = (b/a)^(+n)

so

(7/2)^-3 = (2/7)^3

= 8/343

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