Answer:
B) -1/2
C) {30, 150}
Step-by-step explanation:
Question 3)
We can see that the angle equals 210* which equals 7pi/6 (in radians)
The coordinates would be [tex](\frac{-\sqrt{3} }{2}, \frac{-1}{2})[/tex]
Since the problem is asking for sinθ, we will use -1/2 (the y-coordinate)
So the answer is B) -1/2..
Question 4)
If the criteria of the answer is that it must be between 0 < θ < 360 and it must have a y-value of 1/2 in its coordinate (sinθ = 1/2), then we will choose angles that meet this criteria. When we look at the unit circle (see the attached) we can see that only the angles of 30* and 150* match this answer, so our answer is c.
