is this true?: the 4th root of 81^3 =8^3/4 ? please show steps
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Originally Posted by dymand68 is this true?: the 4th root of 81^3 =8^3/4 ? please show steps I assume you meant 81^3/4 .... Use the usual well known rules: $\displaystyle \sqrt[4]{a} = a^{1/4}$ $\displaystyle (a^m)^n = a^{mn}$
the back of the book shows the conversion as: 8^3/4 (from the 4th root of 81^3) an error in the text presumably
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