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प्रश्न
For the pair of rational numbers, given below, verify that the multiplication is commutative.
`3 "and" (-8)/9`
उत्तर
`= 3/1 xx (-8)/9 = (1xx(-8))/(1xx3) = (-8)/3`
And, `(-8)/9 xx 3/1 = ((-8)xx1)/(3xx1) = (-8)/3`
`therefore 3 xx (-8)/9 = (-8)/9 xx 3`
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संबंधित प्रश्न
Find the product:
`3/(-5) xx (-5)/3`
Evaluate:
`(-125)/72 xx 9/(-5)`
Multiply:
`5/6 "and" 8/9`
Multiply:
`2/7 "and" (-14)/9`
Write the Reciprocal (Multiplicative Inverse) of Rational Number, Given Below:
`5/11`
Find the reciprocal(multiplicative inverse) of:
`3/5xx2/3`
Verify that `("x"+"y")xx"z"="x"xx"z + y"xx"z",if`
`"x"=2," y"=4/5and "z"=3/(-10)`
Verify that `"x"xx("y"-"z")="x"xx"y"-"x"xx"z,"` if
`"x"=4/5,"y"=-7/4and"z"=3`
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the rational number which when multiplied by y to get x.
What should be multiplied with `(-5)/8` to obtain the nearest integer?
