Thanks for the free points, apologies I couldn't help you!
LEGALISM IS THE ANSWER BECUASE IT PART OF THE BRANCH
An early nursing pioneer, Dorothea Lynde Dix was a noted humanitarian, reformer, educator and crusader. She is best known for her patient advocacy in fighting to improve the conditions of jails and mental asylums in North America and Europe.
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
