Advertisements
Advertisements
प्रश्न
By what number should 5−1 be multiplied so that the product may be equal to (−7)−1?
Advertisements
उत्तर
Expressing in fraction form, we get:
5−1 = 1/5 (using the property a−1 = 1/a)
and
(−7)−1 = −1/7 (using the property a−1 = 1/a).
We have to find a number x such that
`1/5x=(-1)/7`
Multiplying both sides by 5, we get: `x=-5/7`
Hence, 5−1 should be multiplied by −5/7 to obtain (−7)−1.
APPEARS IN
संबंधित प्रश्न
Express the following as a rational number of the form \[\frac{p}{q},\] where p and q are integers and q ≠ 0.
Find the value of the following:
(3−1 + 4−1 + 5−1)0
Find the value of the following:
\[\left\{ \left( \frac{1}{3} \right)^{- 1} - \left( \frac{1}{4} \right)^{- 1} \right\}^{- 1}\]
By what number should \[\left( \frac{1}{2} \right)^{- 1}\] be multiplied so that the product may be equal to \[\left( - \frac{4}{7} \right)^{- 1} ?\]
Express the following as a rational number in the form \[\frac{p}{q}:\]
(−7)−1
Simplify:
\[\left\{ 3^{- 1} \times 4^{- 1} \right\}^{- 1} \times 5^{- 1}\]
Find the value of x for which 52x ÷ 5−3 = 55.
Evaluate.
`(8^(-1)xx5^(3))/2^(-4)`
The multiplicative inverse of 1010 is ______.
The multiplicative inverse of `(3/2)^2` is not equal to `(2/3)^-2`.
