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January 31, 2015

January 31, 2015

Posted by **Amir** on Monday, January 23, 2012 at 10:01am.

- matj -
**Damon**, Monday, January 23, 2012 at 10:10amcot^2 - tan^2

cos^2/sin^2 - sin^2/cos^2

(1 - sin^2)/sin^2 - (1-cos^2)/cos^2

1/sin^2 - 1 - 1/cos^2 + 1

1/sin^2 - 1/cos^2

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