Which of these is a Hamilton's canonical equation of motion?
1
\({q_i} = \frac{{\partial H}}{{\partial {p_i}}}\)
2
\({p_i} = \frac{{ - \partial H}}{{\partial {q_i}}}\)
3
\(\frac{{\partial L}}{{\partial t}} = \frac{{ - \partial H}}{{\partial t}}\)
4
\(H = \mathop \sum \limits_j {p_j}{q_j} - L\)