hi Awsom Guy,
the answer given simply re-arranges terms.
I have this question: [(1/t^2)+t].
This is my working out.
=(t^-2) + (t)
=(t^-1/-1) + (t^2/2) + C
=-t^-1 + (t^2/2) + C
=-(1/t) + (t^2/2) + C
But the answer I have says (t^2/2) - (1/t) + C
Can some one please check if I have done something wrong.