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प्रश्न
Verify that `("x"+"y")xx"z"="x"xx"z + y"xx"z",if`
`"x"=2," y"=4/5and "z"=3/(-10)`
उत्तर
`"x"=2," y"=4/5and "z"=3/(-10)`
Using, `("x"+"y")xx"z"="x"xx"z" +"y"xx"z"`
⇒`(2/1+4/5)xx3/(-10)=2xx3/(-10)+4/5xx3/(-10)`
⇒`((2xx5)/(1xx5)+(4xx1)/(5xx1))xx3/(-10)=3/(-5)+6/(-25)`
⇒`((10+4)/5)xx3/(-10)=(-3xx5)/(5xx5)+(-6xx1)/(5xx5)`
⇒`14/5xx3/(-10)=(-15-6)/25`
⇒`(-21)/25=(-21)/25`
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संबंधित प्रश्न
What should be subtracted from -2 to get `3/8`?
Multiply:
`5/6 "and" 8/9`
Multiply:
`2/7 "and" (-14)/9`
Verify That`("x"+"y") xx"z"="x"xx"z"+"y"xx"z"`,If
`"x"=4/5,"y"=(-2)/3 and "z"=-4`
Name the multiplication property of rational number show below:
`3/5xx(-8)/9=(-8)/9xx3/5`
Name the multiplication property of rational number show below:
`4/5xx(3/(-8)+(-4)/7)=4/5xx3/(-8)+4/5xx(-4)/7`
Fill in the blank:
If two rational numbers have opposite signs then their product is always …………..
`(-6)/7 = underline()/42`
`0 xx ((-5)/6)` = ______.
______ × `((-2)/5)` = 1.
