SOLUTION: The Problem: Without a calculator, give the signs of cos3, sin4, and sin-4. What does "sign" mean. Does it just mean if it is positive or negative?

Question 1191859: The Problem: Without a calculator, give the signs of cos3, sin4, and sin-4. What does "sign" mean. Does it just mean if it is positive or negative?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The Problem: Without a calculator, give the signs of cos3, sin4, and sin-4. What does "sign" mean. Does it just mean if it is positive or negative?
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Sign mean positive or negative.
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IDK what "cos3, sin4, and sin-4" means.
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