Question 2: Write each of the following sets in tabular forms:
\((vii)\) \(\;\) \(\{x|x \in Q \wedge x=-x\} \)
Solution:
Tabular Form:
\(\{0\}\)
Explanation:
\(\{x|x \in Q \wedge x=-x\} \) means that, we are looking for rational number such that:
\(x=-x\)
\(x+x=0\)
\(2x=0\)
\(x=\frac{0}{2}\)
\(x=0\)