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Question
Simplify:
\[\left( 3^{- 1} \times 4^{- 1} \right)^{- 1} \times 5^{- 1}\]
Sum
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Solution
\[\left( 3^{- 1} \times 4^{- 1} \right)^{- 1} \times 5^{- 1}\] - `(1/3xx1/4)^(-1)xx1/5` `->(a^(-1)=1/a)`
`=(1/12)^(-1)xx1/5`
`=12/5` `->(a^(-1)=1/a)`
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