document.write( "Question 920359: if sec (theta) + tan (theta)=4,then cos (theta)=? \n" ); document.write( "
Algebra.Com's Answer #558306 by lwsshak3(11628)\"\" \"About 
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if sec (theta) + tan (theta)=4,then cos (theta)=?
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\n" ); document.write( "secx+tanx=4
\n" ); document.write( "\"1%2Fcosx%2Bsinx%2Fcosx=4\"
\n" ); document.write( "\"%281%2Bsinx%29%2Fcosx=4\"
\n" ); document.write( "\"cosx=%281%2Bsinx%29%2F4\"
\n" ); document.write( "
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