Simplify the Expression $\left( \frac { a } { b ^ { 2 } } \right) ^ { - 9 }$

question 46

Multiple Choice

Simplify the expression. Remove all negative and zero exponents. Assume the expression is defined. $\left( \frac { a } { b ^ { 2 } } \right) ^ { - 9 }$

• A) \(\frac { b ^ { 9 } } { a ^ { 18 } }\)
• B) \(\frac { b } { a ^ { 18 } }\)
• C) \(\frac { a ^ { 9 } } { b ^ { 18 } }\)
• D) \(- \frac { b ^ { 18 } } { a ^ { 2 } }\)
• E) \(\frac { b ^ { 18 } } { a ^ { 9 } }\)

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