document.write( "Question 1061949: find derivative of (sin(x+a)/cos x)? \n" ); document.write( "
Algebra.Com's Answer #676715 by Alan3354(69443)\"\" \"About 
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find derivative of (sin(x+a)/cos x)?
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\n" ); document.write( "f(x) = sin(x+a)/cos x
\n" ); document.write( "f(x) = sin(x+a)*sec(x)
\n" ); document.write( "f'(x) = cos(x+a)*sec(x) + sin(x+a)*sec(x)*tan(x)
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