document.write( "Question 1183332: Find an identity for cos(4t) in terms of cos(t).\r
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document.write( "cos(4t) = \n" );
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Algebra.Com's Answer #813598 by Alan3354(69443) You can put this solution on YOUR website! look up Half-angle formulas on Wikipedia.com \n" ); document.write( " \n" ); document.write( " |