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Mathematics 10 Online
OpenStudy (anonymous):

My question is how did u^-15 change to u^15

OpenStudy (anonymous):

sam (.sam.):

\[\huge \frac{1}{u ^{-15}}=\frac{1}{(\frac{1}{u ^{15}})}=u ^{15}\]

Directrix (directrix):

As I see it u^-15 began life in the denominator of a fraction as a factor. |dw:1331552334436:dw|

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