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