document.write( "Question 1038346: prove tanx sinx + cosx = secx \n" ); document.write( "
Algebra.Com's Answer #653035 by Alan3354(69443)\"\" \"About 
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tanx*sinx + cosx = secx
\n" ); document.write( "sin^2/cos + cos = sec
\n" ); document.write( "(sin^2 + cos^2)/cos = sec
\n" ); document.write( "1/cos = sec
\n" ); document.write( "sec = sec
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