document.write( "Question 1051093: differentiate the following function using derivative rules :\r
\n" ); document.write( "\n" ); document.write( "f(x)= cos(4x^2+x+1)
\n" ); document.write( "

Algebra.Com's Answer #666687 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Use the chain rule.
\n" ); document.write( "
\n" ); document.write( "
\n" );