Advertisement Remove all ads

( − 1 5 ) 3 ÷ ( − 1 5 ) 8 is Equal to - Mathematics

MCQ
Sum
\[\left( \frac{- 1}{5} \right)^3 \div \left( \frac{- 1}{5} \right)^8\]  is equal to

Options

  • \[\left( - \frac{1}{5} \right)^5\]

     

  • \[\left( - \frac{1}{5} \right)^{11}\]

     

  • \[( - 5 )^5\]

     

  • \[\left( \frac{1}{5} \right)^5\]

     

Advertisement Remove all ads

Solution

\[( - 5 )^5\]
We have:
\[\left( \frac{- 1}{5} \right)^3 \div \left( \frac{- 1}{5} \right)^8\] `=((-1)/5)^(3-8)`

`=((-1)/5)^(-5)`

`=1/((-1)/5)^5`

`=1/(((-1)^5/5^5))`

`=5^5/(-1)^5`

`=(5/(-1))^5`

`=(-5)^5`

  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

RD Sharma Class 8 Maths
Chapter 2 Powers
Q 8 | Page 23
Advertisement Remove all ads

Video TutorialsVIEW ALL [1]

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×