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Commutative Property of Rational Numbers

Question 105i...

Question

Question 105(i)
Verify the property x + y = y + x of rational number by taking
$x = \frac{1}{2}$ and $y = \frac{1}{2}$

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Solution

$x = \frac{1}{2}$ and $y = \frac{1}{2}$
Then, LHS $= x + y = \frac{1}{2} + \frac{1}{2} = 1$
RHS $= y + x = \frac{1}{2} + \frac{1}{2} = 1$
$∴$ LHS = RHS $\Rightarrow$ $x + y = y + x$
Hence verified

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Q. Question 105(iv)
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Commutative Property of Rational Numbers

Standard VIII Mathematics

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