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DescriptionGraphical interpretation of the complex roots of a cubic.PNG	This file has no description, and may be lacking other information. Please provide a meaningful description of this file.
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|date = 2011-11-19

• 14 December 2011 (original upload date)

|source = Own work |author = Duoduoduo at en.wikipedia |Permission = |other versions = }}

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• 2011-12-14 15:30 (UTC) | Duoduoduo | 14946 (bytes) | 928×554 | {{Information |Description = The slope of line RA is twice that of RH. Denoting the complex roots of the cubic as ''u''±''vi'', ''u'' = <math>\overline{OM}</math> (negative here) and ''v'' = <math>\sqrt{\tan ORH} = \sqrt{\text{slope of line RH}} = \over