 |
| |||
| multiplying the first relation by 2 followed by summation, we come to the concise form of the above equation | |||
| последующее суммирование: 4 phrases in 2 subjects |
| Mathematics | 2 |
| Oil / petroleum | 2 |
|
| |||
| multiplying the first relation by 2 followed by summation, we come to the concise form of the above equation | |||
| последующее суммирование: 4 phrases in 2 subjects |
| Mathematics | 2 |
| Oil / petroleum | 2 |