Advertisements
Advertisements
प्रश्न
\[\left( \frac{- 2}{5} \right)^7 \div \left( \frac{- 2}{5} \right)^5\] is equal to
पर्याय
- \[\frac{4}{25}\]
- \[\frac{- 4}{25}\]
- \[\left( \frac{- 2}{5} \right)^{12}\]
- \[\frac{25}{4}\]
MCQ
बेरीज
Advertisements
उत्तर
`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`
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Evaluate.
3−2
Evaluate:
(−3)−2
Evaluate:
\[\left( \frac{- 1}{2} \right)^{- 1}\]
Express the following rational numbers with a negative exponent:
\[3^5\]
Simplify:
\[\left\{ \left( \frac{1}{2} \right)^{- 1} \times ( - 4 )^{- 1} \right\}^{- 1}\]
By what number should \[\left( \frac{5}{3} \right)^{- 2}\] be multiplied so that the product may be \[\left( \frac{7}{3} \right)^{- 1} ?\]
\[\left\{ \left( \frac{1}{3} \right)^2 \right\}^4\] is equal to
For any two rational numbers a and b, a5 × b5 is equal to
For a non zero rational number a, (a3)−2 is equal to
The cells of a bacteria double itself every hour. How many cells will there be after 8 hours, if initially we start with 1 cell. Express the answer in powers.
