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Why is cosine positive in the 4th quadrant and sine isn’t?
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Why is cosine positive in the 4th quadrant and sine isn’t?
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Sep 20, 2021
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Why is cosine positive in the 4th quadrant and sine isn’t?
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Answer:
Because sine can only be positive in quadrant II according to the CAST rule.
Doerig
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Sep 25, 2021
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Doerig
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