Integral Maths Answers |link| Review

Alternatively, if you're a teacher – why do you keep the worked solutions hidden? It feels like we're being forced to guess rather than learn.

Thanks in advance.

Before anyone says it – I know we aren't supposed to just cheat the system, and I have been using the hints and "Similar Questions" feature. But sometimes, even the mark scheme doesn't explain why a step happens (e.g., why they chose u = tan(x/2)). integral maths answers

Hey everyone,