Advertisements
Advertisements
प्रश्न
For the pair of rational numbers, given below, verify that the multiplication is commutative.
`(-1)/5 "and" 2/9`
Advertisements
उत्तर
`= (-1)/5 xx 2/9 = ((-1)xx2)/(5xx9) = (-2)/45`
And, `2/9 xx ((-1)/5) = (2xx(-1))/(9xx5) = (-2)/45`
`therefore (-1)/5 xx 2/9 = 2/9 xx (-1)/5`
APPEARS IN
संबंधित प्रश्न
Find the product:
`3/11xx 2/5`
Multiply:
`(-7)/8 "and" 4`
Find the reciprocal(multiplicative inverse) of:
`3/5xx2/3`
For the pair of rational numbers, given below, verify that the multiplication is commutative.
`3 "and" (-8)/9`
Verify That`("x"+"y") xx"z"="x"xx"z"+"y"xx"z"`,If
`"x"=4/5,"y"=(-2)/3 and "z"=-4`
Fill in the blank:
The product of two negative rational numbers is always ……………
Fill in the blank:
The reciprocal of a positive rational number is ………. and the reciprocal of a negative raitonal number is ……………
`(-6)/7 = underline()/42`
`0 xx ((-5)/6)` = ______.
If `(-5)/7 = x/28`, find the value of x.
