equation 579 568 1401 719
equation 425 1382 1401 1453
equation 403 1543 1401 1708
text 297 762 1402 1005
equation 444 1238 1401 1309
equation 416 1024 1401 1095
text 297 229 1402 570
text 297 1489 1299 1524
equation 421 1913 1401 1984
text 297 1329 1033 1362
text 297 1744 1402 1894
text 297 1115 1243 1218
text 298 2005 771 2035