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Question
\[\left( \frac{- 2}{5} \right)^7 \div \left( \frac{- 2}{5} \right)^5\] is equal to
Options
- \[\frac{4}{25}\]
- \[\frac{- 4}{25}\]
- \[\left( \frac{- 2}{5} \right)^{12}\]
- \[\frac{25}{4}\]
MCQ
Sum
Solution
`4/25`
We have:
\[\left( \frac{- 2}{5} \right)^7 \div \left( \frac{- 2}{5} \right)^5\] `=((-2)/5)^(7-5)`
`=((-2)/5)^2`
`=(-2)^2/5^2`
`=4/25`
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