Angles and Trigonometric Functions Answers
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1
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Which trigonometric expressions equal ? Check all that apply.
A
cos(120°)B
Sine (StartFraction 7 pi Over 6 EndFraction)
C
sin(–120°)D
Cosine (StartFraction 7 pi Over 6 EndFraction)
E
Cosine (negative StartFraction 10 pi Over 3 EndFraction)
2
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