document.write( "Question 1139162: Use an identity to write the expression as a single trigonometric function.\r
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Algebra.Com's Answer #756952 by Edwin McCravy(20059)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"sqrt%28%281%2Bcos%2814%5E%22o%22%29%29%2F2%29\"\r\n" );
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document.write( "That looks like the right side of the identity:\r\n" );
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document.write( "\"cos%28alpha%2F2%29=%22%22%2B-sqrt%28+%281%2Bcos%28alpha%29%29%2F2%29\"\r\n" );
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document.write( "So we substitute 14° for a using the + sign:\r\n" );
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document.write( "\"cos%2814%5E%22o%22%2F2%29=sqrt%28+%281%2Bcos%2814%5E%22o%22%29%29%2F2%29\"\r\n" );
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document.write( "\"cos%287%5E%22o%22%29=sqrt%28+%281%2Bcos%2814%5E%22o%22%29%29%2F2%29\"\r\n" );
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document.write( "Answer: \"cos%287%5E%22o%22%29\"\r\n" );
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document.write( "Edwin
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