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December 18, 2014

December 18, 2014

Posted by **Angela** on Sunday, July 24, 2011 at 6:14pm.

- Pre Cal -
**Reiny**, Sunday, July 24, 2011 at 6:28pm2sin^2 t + cos^2 t-2

=2sin^2t + 1 - sin^2t - 2

=sin^2t - 1

which could be factored to

(sinx+1)(sinx-1)

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