1 line
70 B
TeX
1 line
70 B
TeX
\sum_k m_{ik}\ddot{x}_k+\sum_k k_{ik}x_k=-\sum_k \alpha_{ik}\dot{x}_k
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\sum_k m_{ik}\ddot{x}_k+\sum_k k_{ik}x_k=-\sum_k \alpha_{ik}\dot{x}_k
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