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
Answer:
Homes in villages were buried partly underground with straw-covered roofs. Walls were built to protect settlements from flooding and hostile neighbors.
Answer:
The answer is spread democracy & prosperity
Explanation:
The president of Mexico during the battle of Puebla was Benito Juárez.
<span>under president johnson's reconstruction plan, the south was led by: </span><span>wealthy white planters
These planters were strongly opposing the reconstruction plan because they heavily relied on the Slaves' labor force in order to operate the majority of their plantations.</span>
