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
The statement about the relationship between East, West and South Africa with Europe that is correct is A. Some areas initially benefitted from trade with the Europeans, but eventually, the contact resulted in the division of Africa into separate colonies. South Africa has a violent history consisting of racial and political tension. There is also inter-tribal tension which sometimes flares up into armed conflict between the various groups. The European settlers colonized large areas of South Africa and forced the African people into homelands and reserves.
For beach resorts, that would be Turkey. In the last few years, they put huge investments in their tourism industry and a lot of efforts in modernizing their resorts. Perhaps the most popular and eventually the best Turkey resort is Antalya. It is a very modern tourist destination, compatible with any Western Europe resorts in terms of attractions, service and prices. Plus, it is spiced up a little with the taste of the Orient. The diversity of products is wide and you can find what you are looking for whether you look for a family vacation or for wild night life.
<span>If you look for something more "inside Europe", Greece and Croatia are the only Eastern countries that can offer high quality tourism products. </span>
<span>For winter sports probably the best resort would be "Bansko" in Bulgaria. It is still in process of development though.</span>
The soviets won the Space Race
1992 was the 500th anniversary of the day Columbus came to america. But in 1992 it was changed from Columbus day to indigenous peoples day. That is what led to massive protests in 1992.