document.write( "Question 1110346: complete the identities:\r
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document.write( "(cos(alpha-beta))/((cos(alpha+beta))\r
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document.write( "(sin3x+sin9x)/(cos3x+cos9x)\r
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Algebra.Com's Answer #725754 by Alan3354(69443) You can put this solution on YOUR website! complete the identities:\r \n" ); document.write( "\n" ); document.write( "(cos(alpha-beta))/((cos(alpha+beta))\r \n" ); document.write( "\n" ); document.write( "(sin3x+sin9x)/(cos3x+cos9x) \n" ); document.write( "=============== \n" ); document.write( "It's not an identity without an equal sign. \n" ); document.write( " \n" ); document.write( " |