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
they thought they were going to be ffree
He built a boat with the villagers
If the war turned into a nuclear war many innocent lives would have been taken. America and Korea does not wanna kill any innocent people
