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Verify the Property: X × Y = Y × X by Taking: X = 2 , Y = 7 − 8 - Mathematics

Sum

Verify the property: x × y = y × x by taking:

\[x = 2, y = \frac{7}{- 8}\]
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Solution

\[\text{We have to verify that} x \times y = y \times x . \]
\[ x = 2, y = \frac{7}{- 8}\]
\[ x \times y = 2 \times \frac{7}{- 8} = \frac{7}{- 4}\]
\[y \times x = \frac{7}{- 8} \times 2 = \frac{7}{- 4}\]
\[ \therefore 2 \times \frac{7}{- 8} = \frac{7}{- 8} \times 2\]
\[\text{Hence verified .} \]

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APPEARS IN

RD Sharma Class 8 Maths
Chapter 1 Rational Numbers
Exercise 1.6 | Q 1.3 | Page 31
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