Show a table for s(x)=4(2)^-1
1 answer:
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<u>Answer:</u>
The correct answer option is D. 120°, 240°.
<u>Step-by-step explanation:</u>
We are given the information about x that .
We know that [tex]cos x=-\frac{1}{2}[/tex ] is actually the ratio of adjacent side to the hypotenuse. It means that here, adjacent is -1 and hypotenuse is 2.
A negative cosine tells us that the angle is either in Quadrant II or Quadrant III.
So if it is in 2nd quadrant, then x = 120° and if its in 3rd quadrant then x = 240°.