Answer:
A period of time characterized by certain political social or economic events
Explanation:
The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
International rivalries affected Europe's colonization of Africa in that they split the African territory, divided towns, displaced people, and created new borders because these powerful European nations wanted to colonize Africa and exploit their raw materials and natural resources.
The Scramble for Africa refers to European nations wanting the biggest and richest colonies in Africa.
After the Berlin Conference of 1844-1845, European superpowers agreed on regulating the split of the African Continent. These European superpowers such as France, Germany, Great Britain, Spain, and Portugal split the African territory, displaced people, and created new borders in order to colonize the territories.
What Europeans really wanted was to exploit the many raw materials and natural resources that were abundant in Africa, in order to make big profits.
The British established an "opium" trade with China, since opium was in high demand in Asia, and both the British and the Chinese saw an opportunity to make immense profits.
When the Roman Empire split, the eastern part of the empire was made into the Byzantine Empire. Therefore, they adopted many of the rules, like the twelve tables, but adjusted them. Also, when they split, the Byzantine Empire adopted the Greco-Roman language.
Two trig identities are of interest here:
... sin(x)² + cos(x)² = 1
... csc(x) = 1/sin(x)
Using the first one, you can subtract cos(x)², the take the square root to find
... sin(x) = ±√(1 - cos(x)²)
Using that in the second one, you have
... csc(x) = ±1/√(1 - cos(x)²) . . . . . . . . . . . . . matches the 3rd choice
