24-04-2017
Mathematics

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if cos Theta < 0, which quadrent(s) could the terminal side of Theta lie?

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PsychrolutesMarcidus PsychrolutesMarcidus

24-04-2017

If cosΦ is lesser than zero (negative) it must be in quadrant 2 or 3 because cos is always positive in quadrants 1,4.

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