text 297 1672 1402 1804
text 297 308 1401 423
equation 388 435 1312 598
equation 437 968 1288 1316
text 297 1325 1402 1387
equation 361 131 911 286
equation 387 1399 1312 1663
text 297 818 1402 956
equation 490 649 1210 810
equation 560 1812 1401 1875
text 297 607 1104 637
text 299 1884 1120 1913