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Cryptocurrency Q&A Why is cos always positive?

Why is cos always positive?

BonsaiLife BonsaiLife Mon Oct 21 2024 | 5 answers 902
I'm confused about why the cosine function always gives positive values. I understand that cosine represents the adjacent over hypotenuse in a right triangle, but how does this ensure that the result is always positive? Why is cos always positive?
cos always positive trigonometry

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