B. y=-3
C. x+y=-3
D. x-y=-3
I know the pictures black It's just showing a vertical line going through -3 on the x-axis (The blue line)
B. sin5pi/6
C. sin5pi/3
D. sin11pi/6
For this case we must find an expression equivalent to:
According to the unit circle, is in the third quadrant and equals 210 degrees.
Then, we must find an expression equivalent to:
We have to:
It is in the fourth quadrant and is equivalent to 330 degrees, according to the unit circle.
Answer:
Option D
The answer choice is D because sin7pi/6 which it’s exact form is -1/2 the only answer choice which the same exact form is D.