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October 21, 2014

October 21, 2014

Posted by **Kristi** on Sunday, March 31, 2013 at 1:16am.

- Math: Solving Trig Equation -
**Steve**, Sunday, March 31, 2013 at 5:04amthere's no equation

the expression is equivalent to

(9tan^2-9sec^2)/tan

and since sec^2-tan^2=1, that's just

-9/tan

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