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प्रश्न
For the pair of rational numbers, given below, verify that the multiplication is commutative.
`3 "and" (-8)/9`
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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:
`3/10 xx (-9)`
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`3/(-5) xx (-5)/3`
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`5/6 "and" 8/9`
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`5/11`
Multiply the rational number, given below, by one (1):
`(-8)/13`
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The product of a rational number and its reciprocal is ………..
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If m is reciprocal of n, then the reciprocal of n is ………….
Multiply the following rational numbers.
`3/5 xx (- 4)/5`
______ × `((-2)/5)` = 1.
If `(-5)/7 = x/28`, find the value of x.
