document.write( "Question 373947: using the periodic properties of trigonometric functions find the exact value of the expression cos(8p/3)?
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Algebra.Com's Answer #266144 by Edwin McCravy(20060)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "By the fact that the period of cosine is \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "and that's the same as \n" ); document.write( "angle which has a cosine of\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Edwin \n" ); document.write( " |