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Mathematics 15 Online
OpenStudy (anonymous):

3√7/2401=?

OpenStudy (anonymous):

Are you trying to simplify this?

OpenStudy (anonymous):

yes, simplify this.

OpenStudy (anonymous):

\[2401 = 7^4\]and \[\sqrt{7}=7^\frac{1}{2}\]You have to use power laws from here:\[\frac{3\sqrt{7}}{7^4}=3 \times 7^{\frac{1}{2}-4}=3 \times 7^{\frac{1}{2}-\frac{8}{2}}=3 \times 7^{-\frac{7}{2}}=\frac{3}{7^\frac{7}{2}}\]\[=\frac{3}{7^{\frac{6}{2}+\frac{1}{2}}}=\frac{3}{7^37^\frac{1}{2}}=\frac{3}{343\sqrt{7}}\]

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