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April 1, 2015

April 1, 2015

Posted by **danielle** on Friday, July 29, 2011 at 4:05pm.

- precal 2 -
**Reiny**, Friday, July 29, 2011 at 5:48pma^2 = 10^2 + 3^2 - 2(10)(3)cos55°

= 109 - 60cos55

= 107.8528..

a = 10.3852..

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