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15-07-2014
Mathematics

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5) Use the rules of exponents to evaluate or simplify. Write without negative exponents. y^-5 / y^-2 = ____

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15-07-2014

[tex]\frac{ y ^{-5} }{y ^{-2}} =y^{-5-(-2)}=y^{-5+2}=y^{-3}=\frac{1}{y^{3}}[/tex]

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