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Mathematics 7 Online
OpenStudy (anonymous):

Anyone good with logarithms?

OpenStudy (mathstudent55):

I'll give it a shot. What's the problem?

OpenStudy (anonymous):

\[\log_{4} \sqrt[3]{\frac{ X ^{2} }{ Y }}\]

OpenStudy (mathstudent55):

Remember that \( \large\sqrt[n]{a} = a^{ \frac{1}{n} } \) With that you can rewrite \(\large \sqrt[3]{\frac{ X ^{2} }{ Y }} \) with the root changed into an exponent. Then remember two rules of exponents: \(\large \log a^n = n \log a\) and \(\large \log \dfrac{a}{b} = \log a - \log b \) Use the first rule of exponents to take care of the exponent 1/3. Then use the second rule to deal with the fraction. Then use the first rule again to deal with the exponent 2.

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