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October 23, 2014

October 23, 2014

Posted by **Mary** on Friday, August 14, 2009 at 1:45pm.

- Math -
**bobpursley**, Friday, August 14, 2009 at 1:59pmwell, sec(theta-PI)=-secTheta

so that means sec(7PI/6)=-secPI/6= -1/cosPI/6= -3/sqrt3

- Math -
**Anonymous**, Wednesday, May 4, 2011 at 3:09amthe answer is -2/sqrt3

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