equation 582 865 1401 934
equation 327 1414 1370 1482
equation 378 1884 1319 2026
text 297 1038 1404 1404
text 297 663 1402 854
equation 667 1701 1030 1812
equation 695 614 1003 660
equation 629 1567 1013 1615
text 299 1489 1401 1557
text 297 1621 1401 1695
equation 675 426 1401 476
text 297 483 1402 607
text 297 1844 939 1874
text 296 230 1402 418
text 298 920 368 944
equation 392 952 1307 1031