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9Â¥: Originally posted by hank612 at 2013-11-08 00:29:32
x^2* Cos^2(theta) - (x- Sin^2(theta))
= (x-1) * Cos^2(theta) * (x- tan^2(theta)).

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ËùÒÔ x * Cos(theta) - Sqrt( x - Si ...

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3Â¥: Originally posted by feixiaolin at 2013-11-05 17:46:19
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