Being the explorer with all his maps and fleeting
Answer: European Scientists were able to able to build on the advancements of the Muslims.
Explanation: The Islamic Empire was all about the value of knowledge and contributed a lot during the Middles Ages to the Scientific Revolution.
Most immigrants from Europe during the early twentieth came from the south and east.
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