document.write( "Question 311216: What is the exact value of cos(-240)? \n" ); document.write( "
Algebra.Com's Answer #222565 by nyc_function(2741)![]() ![]() You can put this solution on YOUR website! The answer is -1/2. \r \n" ); document.write( "\n" ); document.write( "Memorize the unit circle and you'll fly through trigonometry. \n" ); document.write( " |