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Simplify. Assume all variables are positive.\newliner43r73\frac{r^{\frac{4}{3}}}{r^{\frac{7}{3}}}\newlineWrite your answer in the form AA or AB\frac{A}{B}, where AA and BB are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.\newline______

Full solution

Q. Simplify. Assume all variables are positive.\newliner43r73\frac{r^{\frac{4}{3}}}{r^{\frac{7}{3}}}\newlineWrite your answer in the form AA or AB\frac{A}{B}, where AA and BB are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.\newline______
  1. Identify operation: We have the expression:\newliner43/r73r^{\frac{4}{3}} / r^{\frac{7}{3}}\newlineWhich operation will be applied with the exponents?\newlineWhen dividing powers with the same base, the exponents are subtracted.\newlineSo, we will use the subtraction operation with the exponents.
  2. Subtract exponents: Subtract the exponents of rr: \newliner43/r73=r(4373)r^{\frac{4}{3}} / r^{\frac{7}{3}} = r^{\left(\frac{4}{3} - \frac{7}{3}\right)}\newlinePerform the subtraction:\newliner(4373)=r33r^{\left(\frac{4}{3} - \frac{7}{3}\right)} = r^{-\frac{3}{3}}
  3. Perform subtraction: Simplify the exponent:\newliner(3/3)=r(1)r^{(-3/3)} = r^{(-1)}\newlineSince we want the exponent to be positive, we rewrite r(1)r^{(-1)} as:\newliner(1)=1r(1)r^{(-1)} = \frac{1}{r^{(1)}}
  4. Simplify exponent: The final simplified expression is: 1r\frac{1}{r} This is already in the form AA or AB\frac{A}{B}, where AA and BB have no variables in common, and all exponents are positive.

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