Advertisements
Advertisements
प्रश्न
By what number should 5−1 be multiplied so that the product may be equal to (−7)−1?
बेरीज
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.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Evaluate.
3−2
Find the value of the following:
(3−1 + 4−1 + 5−1)0
Find the value of the following:
(5−1 × 2−1) ÷ 6−1
Simplify:
\[\left( 2^{- 1} + 3^{- 1} \right)^{- 1}\]
By what number should 5−1 be multiplied so that the product may be equal to (−7)−1?
Express the following rational numbers with a negative exponent:
\[\left( \frac{1}{4} \right)^3\]
Express the following rational numbers with a negative exponent:
\[3^5\]
Find x, if
\[\left( \frac{3}{2} \right)^{- 3} \times \left( \frac{3}{2} \right)^5 = \left( \frac{3}{2} \right)^{2x + 1}\]
\[\left\{ \left( \frac{1}{3} \right)^2 \right\}^4\] is equal to
\[\left( \frac{- 3}{2} \right)^{- 1}\] is equal to
