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dezoksy [38]
3 years ago
12

What reference angle in the first quadrant corresponds to theta = -120? Answer in radians.

Mathematics
2 answers:
creativ13 [48]3 years ago
4 0
To draw theta=-120° in the unit circle, we move clockwise 90°, then another 30°.

This means that we pass the fourth quadrant and stop in the third quadrant.

The reference angle of an angle theta in the third quadrant, is theta + 180°.

So the reference angle of -120° is -120°+180°=60°.


         360° are 2π Radians
then  60° are 1/6 of 2π Radians = π/3 Radians


Answer: Reference angle is π/3 Radians
Eduardwww [97]3 years ago
3 0

Answer:

Answer: Reference angle is π/3 Radians

Step-by-step explanation:

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