document.write( "Question 641826:
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document.write( "Find the exact value of the expression.\r
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document.write( "sec^2 pi/4 - 6=\r
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document.write( "How would you go about solving this?? \n" );
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Algebra.Com's Answer #403980 by lwsshak3(11628) ![]() You can put this solution on YOUR website! Find the exact value of the expression. \n" ); document.write( "sec^2 pi/4 - 6= \n" ); document.write( "1/cos^2(π/4)-6= \n" ); document.write( "cos (π/4)=√2/2 \n" ); document.write( "cos^2(π/4)=2/4=1/2 \n" ); document.write( "1/(1/2)-6=2-6=-4 \n" ); document.write( "sec^2 pi/4-6=-4 \n" ); document.write( " \n" ); document.write( " |