Question 2 (v)
Find the additive inverse of: \( \frac{2}{8} \)
Solution:
\[ -\frac{2}{8} = -\frac{1}{4} \]
Question 3 (ii)
Verify that: \( -(-x) = x \) for \( x = -\frac{15}{17} \)
Solution:
\[ x = -\frac{15}{17} \]
\[ -(-x) = -\left(-\left(-\frac{15}{17}\right)\right) \]
\[ = -\left(\frac{15}{17}\right) \]
\[ = -\frac{15}{17} \]
\[ \text{LHS} = \text{RHS} \]
\[ \text{Therefore, } -(-x) = x \text{ is verified.} \]