Hi Guys,
I've got stuck on question 1b on this problem sheet - see attached pics. I've also uploaded the answers as well.
I see that there should be 4 roots as you have w^2, so youll have a plus and minus version of w which in itself will have two roots, like in question 1a. However from my working out i get ((2^1/2)/2 + (i(5^1/2))/2) as one of them for example so have no idea how they introduced exponential's into there answers.
Any help would be appreciated.
Cheers