This is where you're off, it should be:Originally Posted by a4swe
Now let's finish:
group like terms:
It seems that the part of my last post that stated my tight sleep as true was indeed a lie. I now have another problem witch will haunt my dreems into infinity, that is iff someone doesn't help me a little!
The problem is:
Simplify this as far as possible.
As for my attempt of a solution:
Thus the original expression equals:
Where is the answer given by my textbook.
What did I do wrong?