Question

if x=-4/7 and y =2/5 then verify that
1) x-y≠y-x

please give with full formula​

Answer 1

Answer:

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Step-by-step explanation:

$x - y \\ \\ \frac{ - 4}{7} - \frac{2}{5} \\ \\ taking \: \: lcm \\ \\ \frac{ - 4 \times 5}{7 \times 5} - \frac{2 \times 7}{5 \times 7} \\ \\ \frac{ - 20}{35} - \frac{14}{35} \\ \\ \frac{ - 20 - 14}{35} \\ \\ \frac{ - 34}{35} \\ \\ \\ \\ \\ y - x \\ \\ \frac{2}{5} - (\frac{ - 4}{7} ) \\ \\ taking \: \: lcm \\ \\ \frac{2 \times 7}{5 \times 7} - (\frac{ - 4 \times 5}{7 \times 5} ) \\ \\ \frac{14}{35} - ( \frac{ - 28}{35} ) \\ \\ \frac{14 - ( - 28)}{35} \\ \\ \frac{14 + 28}{35} \\ \\ \frac{42}{35} \\ \\ \\ \\ \\ Hence, \: \: x-y≠y-x$