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October 21, 2014

October 21, 2014

Posted by **Anonymous** on Friday, November 8, 2013 at 7:31pm.

sec x/(sec x -tan x)=sec^2 x +sec x tan x

- Pre Calculus -
**Steve**, Saturday, November 9, 2013 at 12:24ammultiply top and bottom by sec+tan and recall that

sec^2-tan^2 = 1

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