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Was he correct? Why or why not?
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5 votes
Was he correct? Why or why not?

Was he correct? Why or why not?-example-1
User Khadaji
by
8.5k points

1 Answer

7 votes

Answer:

D

Explanation:

Angle 7π/6 is π/6 below the negative x-axis in the 3rd quadrant. Its cosine will be -(√3)/2.

Angle 11π/6 is π/6 below the positive x-axis in the 4th quadrant. Its cosine will be (√3)/2.

The cosines have the same magnitude, but their signs are opposite each other. Jeremy was not correct.

User Keeg
by
8.8k points
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