Cos(pi/2 - x) = sin(x). sec(x) = 1/cos(x), so the left side would be sinx/cosx = tanx. So it checks out.
Answer: D) "Since horses were not introduced to the Americas until Columbus, the Aztecs and Incas did not use horses or advanced weapons, while the Afro-Eurasians had highly developed cavalries and weaponry."
The answer is not A because Afro-Eurasia was composed of giant empires and governments, not small ones. The answer is not B because slavery was acceptable in the Incan and Aztec empires <u>as well as</u> in the Afro-Eurasia. Finally, it can't be C because in Afro-Eurasian governments, <u>only a few</u> were centered on religious beliefs, not all.
The European union was created to make trade between its members easier
Answer:
They are named after Jimmie Angel, a US aviator, who was the first person to fly over the falls
Explanation:
Answer:
it would be A
Explanation:
Why would anyone do something that drastic if its not that important
