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December 22, 2014

December 22, 2014

Posted by **lindsay** on Monday, April 23, 2012 at 10:18pm.

- trigonometry -
**Reiny**, Monday, April 23, 2012 at 11:54pm27tan^2 x = 9

tan^2 x = 1/3

tanx = ± 1/√3

x = 30° , 150° , 210° or 330°

general

x = (30 + 180k)° , where k is an integer

x = (150+180k)° , where k is an integer

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