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2006 AIME I Problems/Problem 12

Revision as of 12:15, 30 June 2006 by MCrawford (talk | contribs)

Problem

Find the sum of the values of $x$ such that $\cos^3 3x+ \cos^3 5x = 8 \cos^3 4x \cos^3 x,$ where $x$ is measured in degrees and $100< x< 200.$



Solution

See also

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