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प्रश्न
Verify the property x × y = y × x of rational numbers by using
`x = (-3)/8` and `y = (-4)/9`
उत्तर
Given, `x = (-3)/8` and `y = (-4)/9`
Then, LHS = x × y
= `(-3)/8 xx (-4)/9`
= `1/(3 xx 2)`
= `1/6`
RHS = y × x
= `(-4)/9 xx (-3)/8`
= `1/6`
∴ LHS = RHS
Hence, xy = yx
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