Exemplar exercise problems XXIV — task. Mathematics CBSE, Class 8.

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Verify the property

$x \times y = y \times x$ of rational numbers by using

(a)

$x = 7$ and

$y = \frac{1}{2}$

(b)

$x = \frac{2}{3}$ and

$y = \frac{9}{4}$

(c)

$x = \frac{-5}{7}$ and

$y = \frac{14}{15}$

(d)

$x = \frac{-3}{8}$ and

$y = \frac{-4}{9}$

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36. Exemplar exercise problems XXIV