Advertisements
Advertisements
प्रश्न
______ × `((-2)/5)` = 1.
Advertisements
उत्तर
`underlinebb((-5)/2) xx ((-2)/5)` = 1.
Explanation:
Let `x xx ((-2)/5) = 1`
⇒ `(-2x)/5 = 1`
⇒ –2x = 5 ...[By cross-multiplication]
⇒ `x = (-5)/2`
Hence, `(-5)/2 xx ((-2)/5) = 1`.
APPEARS IN
संबंधित प्रश्न
Evaluate:
`(-11)/9 xx (-51)/(-44)`
Multiply:
`5/6 "and" 8/9`
Multiply:
`3/(-2) "and" (-7)/3`
Find the reciprocal(multiplicative inverse)of:
`(-8)/3xx13/(-7)`
Find the reciprocal (multiplicative inverse) of:
`(-8)/3xx(13)/(-7)`
Multiply the rational number, given below, by one (1):
`7/(-5)`
For the pair of rational numbers, given below, verify that the multiplication is commutative.
`3 "and" (-8)/9`
Fill the Blank:
The product of two positive rational numbers is always ……………
Fill in the blank:
The numbers ……….. and ……….. are their own reciprocals.
Multiply the following rational numbers.
`3/5 xx (- 4)/5`
