ong^14 a was easy, 14 b i) everyone wouldve gotten, 14 b ii) the hard part is knowing to use double roots but thats pretty clear after realising it needs one real solution. 14 c i) ill say is a little hard but theres a really smooth method for it that only requires a few lines that involves using cos(pi/2 - theta) = sin(theta) c ii) an attempt can be made without doing part i)