There is a subtle difference between Arctan and arctan
Arctan(x) is an inverse function such that the range is only the principla value
meanwhile, arctan(x) takes on infinitely many values
hope this helps
There's multiple reasons for the lack of unity between the Indian tribes against the European invasion and expansion on their territory. The Indians were divided into multiple groups, some of which had already had problems and bad blood between them, so alliances between tribes like that were not the first choice in mind. Also, the Europeans played well tactically, by promising some of the tribes certain things if they ally with them, so once the Europeans managed to get what they wanted they were turning against their Indian allies who were pretty much isolated bu that point because of their actions. The conquering of new territories by the Europeans also was very big factor, because they managed to cut the connections between the tribes, thus not allowing them to be able to create alliances and be united against them.
A) The act forcibly relocated eastern American Indians to Indian Territory west of the Mississippi River
I can't really explain it, that's just what the treaty stated.
Inside these factories there sometimes were no good ventilation(no windows), many frequent accidents would happen and many children would start working very early maybe starting by the age of 6 yrs old if there parents weren't there to supervise them