Lots of #undergroundmaths today. Some functions with Composing Gets me Nowhere twice and a nice 1967 AO question on trig identities and equations. #MathsToday #ALevelMaths

Lots of #undergroundmaths today. Some functions with Composing Gets me Nowhere twice and a nice 1967 AO question on trig identities and equations. #MathsToday #ALevelMaths