Simplify the Expression $$\left( \frac { r ^ { 5 } r ^ { - 1 } } { r ^ { 3 } r ^ { - 3 } } \right) ^ { 2 }$$

question 7

Multiple Choice

Simplify the expression. $$\left( \frac { r ^ { 5 } r ^ { - 1 } } { r ^ { 3 } r ^ { - 3 } } \right) ^ { 2 }$$
Write the answer without using negative exponents. Assume that the variable is restricted to those numbers for which the expression is defined.

• A) \(r ^ { 2 }\)
• B) \(\quad r ^ { 8 }\)
• C) \(\quad r ^ { 0 }\)
• D) \(\quad r ^ { 12 }\)

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