I was looking at past papers and I noticed out of the 3 theorems we are supposed to be able to prove theorem 11 has come up 3 years; 2015, 2011,2010. However neither 12 nor 13 have come up. It just seems odd to me that not only did they ask the same theorem 2 years in a row they haven't asked for the other two.....yet:/ So what do people think should I prepare for them asking 11 or do you think they'll finally ask 12 and 13?

david1510— 27/05/16