Mathematics, 28.05.2020 19:00 abbz13

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Which expression is equivalent to cos 120°?
COS 60°
cos 240°
cos3000
cos4200

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Which expression is equivalent to cos 120°?
COS 60°
cos 240°

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Please answer ASAP Which expression is equivalent to cos 120°? COS 60° cos 240° cos3000 cos4200

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Another question on Mathematics

Please answer ASAP
Which expression is equivalent to cos 120°?
COS 60°
cos 240°
cos3000
cos4200