document.write( "Question 33123: find the exact value, leaving the answer in a proper form of sec 540 degrees. \n" ); document.write( "
Algebra.Com's Answer #19560 by venugopalramana(3286)\"\" \"About 
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SEC(540)=SEC(360+180)=SEC(180)=SEC(180-0)=-SEC(0)=-1 \n" ); document.write( "
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