Найди координаты векторов

\(\overrightarrow{m} \) \(\{4; \, -5 \}\) ; \(\overrightarrow{n} \) \(\{-3; \, 7\} \) .

1. \(\overrightarrow{m} + \overrightarrow{n} \space \{\) [ ] \(;\) [ ] \(\};\)
2. \(3 \cdot \overrightarrow{m} \space \{\) [ ] \(;\) [ ] \(\};\)
3. \(3 \cdot \overrightarrow{m} -2 \cdot \overrightarrow{n} \space \{\) [ ] \(;\) [ ] \(\};\)
4. \(- \overrightarrow{n} \space \{\) [ ] \(;\) [ ] \(\}.\)