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Mathematics 7 Online
OpenStudy (anonymous):

Rationalize the denominator of

OpenStudy (anonymous):

OpenStudy (anonymous):

muiltiplly and divide by \[\sqrt{3tr}\]

OpenStudy (anonymous):

i wouldn't

OpenStudy (anonymous):

divide first

OpenStudy (anonymous):

so it becomes \[\frac{ \sqrt{71t ^{3}r ^{2}} }{ 3tr }\]

OpenStudy (anonymous):

\[\frac{\sqrt{27t^2r}}{\sqrt{3tr}}=\sqrt{\frac{27t^2r}{3tr}}=\sqrt{9t}\]

OpenStudy (anonymous):

\[\frac{ \sqrt{71t ^{3}}r }{ 3tr }\]

OpenStudy (anonymous):

then since \(\sqrt9=3\) you get \(3\sqrt t\)

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