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Q4 is D.

Hey So when the particle hits the ground, it makes a negative angle with the horizontal right? Does that mean at moment of impact is tan(-a) for example? How would I answer, what is the inclination when particle hits the ground? positive or negative angle? Thanks!

Are you allowed to use implicit differentiation in 3U? What about other 4U methods like using complex numbers to get those triple angle formulae?

Almost finishing complex numbers, moving on to graphs. Any hints for curve sketching in extension 2?

Um, for ipt there are 19 ppl for pe: 35 standard eng: 89 gen maths: 87 bio : 77 these may change, as some people may drop .

Hey So with these subjects: std eng gen maths pe ipt bio with a school of rank more than 150, e.g. rank 190 getting top 10 in these subjects will give me an estimate of?

Wow.. drop like visual arts or bio

Standard English Mathematics Extension 1 and 2 Chemistry Biology Senior Science (keeping if I fail 4 unit because I would get kicked out apparently, dropping if I do mad in 4unit) Aim: 97+

That was what I was saying. However, to OP, it may or may not be exactly 30%/20% for 3/2 unit. It could have 15% for instance.

Up to 30% of what you learnt in Prelim for ext1 20% for 2unit.

Drop General Maths.