nope i didn't say you are wrong.
just say i have that thought.
well, most of them will be starting in JC/Poly next year, and I
don't want them to go in with totally no idea what integration and
differentiation are actually used for. Because they will be
touching it a lot, at least in H2 Maths.
Also, there are A level students looking at such threads too.
Stated out of O level syllabus is for those taking O levels to
ignore for the moment, but for those A level people who are looking
as well, they should be clear about it and they should know this
extra info.
Finally, there are quite a number of people looking at old
threads (at least I managed to track such statistics for posts a
few months old when they clicked on the link to my website). I also
do not want students who might want to look back this thread half a
year later when they are in JC and stick to what is taught at O
levels, which is sadly, very limited and overly simplified.
Your point on synergy was valid, although not in answering the
question at all. That's the reason why I didn't edit away your
other posts.