(i) We have,
x x y = \(\frac{-1}{3}\times (\frac{2}{7})\)
= \(\frac{-2}{21}\)
y x x = \(\frac{2}{7}\times (\frac{-1}{3})\)
= \(\frac{-2}{21}\)
(ii) We have,
x x y = \(\frac{-3}{5}\times (\frac{-11}{3})\)
= \(\frac{33}{65}\)
y x x = \(\frac{-11}{13}\times (\frac{-3}{5})\)
= \(\frac{33}{65}\)
(iii) We have,
x x y = \(2\times (\frac{7}{-8})\)
= \(\frac{-14}{8}\) = \(\frac{-7}{4}\)
y x x = \(\frac{7}{-8}\times 2\)
= \(\frac{-14}{8} = \frac{-7}{4}\)
(iv) We have,
x x y = \(0\times (\frac{-15}{78})\)
= 0
y x x = \(\frac{-15}{8}\times 0\)
= 0