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
Answer:
the release of green houses gases and other pollutions.
In the 1960 Presidential elections, John F Kennedy became the democratic candidate despite his Catholicism.
This was surprising since Anti-Catholic sentiment was pretty high in mainstream American society at the time.
This was also seen as a reason why his presidential win was the closest in the history of the United States with a margin of just 118,000 out of 69 million votes.
He created new federal agencies to deal with specific needs of the troops and home front
