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Which of the following shows the correct steps to find the value of 8 to the power of 1/3?

Which of the following shows the correct steps to find the value of 8 to the power-example-1
User Andy Gauge
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1 Answer

4 votes

8^{(1)/(3)}=(2^3)^{(1)/(3)}=(2)^{3((1)/(3))}=2\text{ (option B)}

Step-by-step explanation:


\begin{gathered} 8\text{ to the power of 1/3 = }8^{(1)/(3)} \\ 8=2^3 \end{gathered}
\begin{gathered} 8^{(1)/(3)}=(2^3)^{(1)/(3)} \\ =(2^3)^{(1)/(3)}=(2)^{3((1)/(3))} \end{gathered}
\begin{gathered} =(2)^{3((1)/(3))}=(2)^{(3)/(3)} \\ =2^1 \\ =\text{ 2} \\ \text{the correct option:} \\ 8^{(1)/(3)}=(2^3)^{(1)/(3)}=(2)^{3((1)/(3))}=2\text{ (option B)} \end{gathered}

User Quittle
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