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प्रश्न
Verify That`("x"+"y") xx"z"="x"xx"z"+"y"xx"z"`,If
`"x"=4/5,"y"=(-2)/3 and "z"=-4`
उत्तर
`"x"=4/5,"y"=(-2)/3 and "z"=-4`
Using, `("x+y")xx"z"="x"xx"z"xx"y"xx"z"`
⇒`(4/5+(-2)/3)xx-4=4/5xx-4+(-2)/3xx-4`
⇒`((4xx3)/(5xx3)-(2xx5)/(3xx5))xx-4=(-16)/5+8/3`
⇒`(12-10)/15xx-4=(-48+40)/15`
⇒ `2/15xx(-4)`
=`(-8)/15=(-8)/15`
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संबंधित प्रश्न
Find the product:
`9/2 xx ((-7)/4)`
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`3/(-5) xx (-5)/3`
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`(-11)/9 xx (-51)/(-44)`
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5
For the pair of rational numbers, given below, verify that the multiplication is commutative.
`(-1)/5 "and" 2/9`
Name the multiplication property of rational number show below:
`4/5xx(3/(-8)+(-4)/7)=4/5xx3/(-8)+4/5xx(-4)/7`
Name the multiplication property of rational number show below:
`(-7)/5xx5/(-7)=1`
Fill in the blank:
The product of a rational number and its reciprocal is ………..
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The numbers ……….. and ……….. are their own reciprocals.
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the rational number which when multiplied by y to get x.
