If a - - 1 7 and b - 3 7 - show that ab-ba-

ab= 17×37= 349 ba=37× 17= 349 Hence ab=ba ...

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Multiplication and Division of Rational Numbers

If a = - 1 ...

Question

If $a = \frac{- 1}{7}$ and $b = \frac{3}{7},$ show that $a b = b a .$

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If Show that AB ≠ BA

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