A cura di: Gianluca

$int(3-7x)/(4+2x^2)dx=$

=$int3dx/(4+2x^2)-7intx/(4+2x^2)dx=$

=$3/4intdx/(1+x^2/2)-7/4(log4+2x^2)=$

=$(3/4arctan(x/sqrt(2)))/(1/sqrt(2))-7/4(log(4+2x^2))+K$ 

di Anoè Gianluca –www.chenesoio.com