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:
Select all that apply.
Which of the following people groups were of Indo-European origin?
Hittites
Egyptians
Mycenaeans
Sumerians
Aryans
Answer
C. People of different sexual orientations, e.g., gay people
Explanation:
