document.write( "Question 537562: How do I find the exact trigonometric function of sec 450? \n" ); document.write( "
Algebra.Com's Answer #352933 by Edwin McCravy(20060)\"\" \"About 
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document.write( "450° has reference angle of 90°.  The secant is 1 over the\r\n" );
document.write( "cosine.  The cosine of 90° is 0, and 1 over zero is undefines,\r\n" );
document.write( "so sec(450°) is undefined.\r\n" );
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document.write( "Edwin
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