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March 28, 2015

March 28, 2015

Posted by **Anonymous** on Monday, March 2, 2009 at 11:04pm.

sec theta>0 and cot theta<0

- precal -
**drwls**, Monday, March 2, 2009 at 11:11pmsec theta is positive where cos theta is positive. That would be the first and fourth quadrants. Cot theta is negative where tan theta is negative, and that would be in the second and fourth quadrants. The only quadrant that satifies both criteria is the fourth.

- precal -
**Anonymous**, Monday, March 2, 2009 at 11:25pmwhy is sec theta positive where cos theta is positive?

- precal -
**drwls**, Monday, March 2, 2009 at 11:30pmbecause sec theta = 1/cos theta.

Both functions have the same sign

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