Which expression is equivalent to cos 120°?
cos 60°
cos 240°
cos 300°
cos420...
Mathematics, 25.01.2021 21:00 potato3999
Which expression is equivalent to cos 120°?
cos 60°
cos 240°
cos 300°
cos4200
Answers: 3
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Prove that 16^4-2^13-4^5 is divisible by 11.
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