Question

3
2 -3 1 3
12. Find
5. 7 14 7
X
unl​

Answer 1

Answer:

$\frac{2}{5} \times \frac{ - 3}{7} - \frac{1}{14} - \frac{3}{7} \times ( \frac{3}{5} ) \\ = (( \frac{2}{5} \times \frac{ - 3}{7})- \frac{1}{14} ) - ( \frac{3}{7} \times \frac{3}{5} ) \\ = ( \frac{ - 6}{35} - \frac{1}{14}) - \frac{9}{35} \\ = ( \frac{ - 12 - 5}{70} ) - \frac{9}{35} \\ = \frac{ - 17}{70} - \frac{9}{35} \\ = \frac{ - 17 - 18}{70} \\ = \frac{ - 35}{70} \\ = \boxed{ \bf{ \underline{ \underline{\frac{ - 1}{2} }}}}$