It’s not as bad as it looks
if 16d is the phi thing, then,
(i) is free
(ii) normal but with inductive step you sub in (i)
(iii) algebra and shit then take limit
It's shit for extension maths 💀
as for advanced, it's good enough, certainly not very good
personally I find videos rly good, especially those from mathsonline (kinda surface level) and mcgrathematics (the goat)
Naw ifl it doesn’t even matter what textbook you use for 2u since they’re fairly similar and you gotta do past papers for grinding anyway
I used mainly mif and fitz roughly equal amounts (barely used either tbh) and did fairly well in 2u
Edit: for non 2u im a mif hater
the vectors visualising for mcq10 is legit useless 💀
you're basically figuring out the number of ways you can arrange m right moves and n up moves
this is basically just arranging m R's and n U's in a straight line
this can be done 2 ways:
first way: (m+n)!/m!n!, where (m+n) is the total number...