need help with exponents
what is it
\[(\frac{ 1 }{ r })^{3}\times (\frac{ 1 }{ r })^{2}\]
The easiest way to do this, I think, would be to multiply them together that many times. Example x^3 == x*x*x
which would eventually yield (1/r^3)*(1/r^2), correct?
i just don't understand how we multiply
\[\left(\begin{matrix}1 \\ r\end{matrix}\right)*\left(\begin{matrix}1 \\ r\end{matrix}\right)*\left(\begin{matrix}1 \\ r\end{matrix}\right)\] all you have to do from here is multiply all the numerators together and all the denominators together. In this case, 1*1*1 is still 1 while r*r*r is r^3
\[\frac{ 1 }{ r ^{3} } \times \frac{ 1 }{ r ^{2} }\]
i don't know how to do this equation
it's the same as in the others - multiply the numerators together and the denominators together. When multiplying exponents with the same base together, you simply add the exponent. an example would be x^5*x^2=x^7
\[\frac{ 1 }{ r ^{5} }\]?
correct
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