Originally Posted by
deragon999 Here a few questions i had solved by the method that was asked for can someone please check my answers:
1) find integrate 4x/(x^2+2x+5) dx
I got 2ln((x+1)^2+4) -2Arctan((x+1)/2) +C
2) find integrate (2x^3-4x^2-15x+5)/(x^2-2x-8) dx by partial fractions and long division
I got x^2 +1.5ln(x-4) -0.5ln(x+2) +C
3) integrate lnx/x dx
I got 0.5(lnx)^2 +C
4) integrate cosxln(sinx) dx
I got sinxln(sinx) -sinx +C
Any changes are appreciated and yes to ll is even more appreciated