what is the value of cos(1860)°
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Answered by
6
cos 1860°
= cos(180°×10 + 60°)
= - cos(60°)
= -0.5
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Answered by
2
Answer:
answer is 0.5
Step-by-step explanation:
= cos (180 × 10 + 60)
= cos(10π + 60)
= cos 60°
cos = 1/2
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