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6

Set 1: Trigonometry (Advanced)

Explanation

Answer: B

PROBLEM

What is the reference angle for 120 degrees?

What is the reference angle for 120 degrees?

A.

120 degrees

B.

60 degrees

✓ Correct
C.

90 degrees

D.

120 degrees

Detailed Explanation

Choice B is the best answer. Reference angle for 120 degrees is 60 degrees

Why others are wrong:
A: 120 degrees is incorrect because it does not satisfy the equation.
C: 90 degrees is incorrect because it does not satisfy the equation.
D: 120 degrees is incorrect because it does not satisfy the equation.
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