# Math Help - derivative HELP!! again

1. ## derivative HELP!! again

find the derivative and simplify

f(x) = xln(arctanx)

would the answer be 2x4 + 2X2+ ln(arctanx)

2. ## Re: derivative HELP!! again

Use the product rule, for $y = v\times u \implies y' = vu'+uv'$

In your case $v= x , u = \ln(\arctan x)$ use the chain rule to get $u'$