logarithms
(in each case check your answer by subtituting back the value for x)
differentials
w.r.t. t
integrate
thanks
yeh haha I am I only just learnt it well still are, once I keep doing them im sure I'll be ok
and thanks ^
EDIT: in differentials the s=4e3t the t is ment to be low case like the 3 how do I do this :X
Second EDIT: just done the LaTeX right now