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yeah. agreed - but I will give you a higher estimate - 92+

75~80+

98+

this isn't a 4u question. let A = tan^-1 2 and B = tan^-1 1 expand tan (A - B) and sub in the value.

agreed.

still possible :D

I mean your ranks aren't great for a 200+ school but your chem and software ranks are good. so maybe a little bit higher - 87+

I found that having multiple extension subjects can be an advantage in some way. at the end of the day, you only need to study for four different subjects. plus the enormous scaling in extension subjects is a bonus.

92+

may I ask - why don't you want to drop chem if you are struggling ? the theory and calculation get heavier in hsc, so prepare yourself :) best thing to do if you are struggling is to get a tutor. although having a tutor doesn't guarantee success, s/he will help you to understand concepts in chem.

maybe you should stay with mx1 for now. because you haven't start the work on your new extension subjects, there are possibilities that you won't like either of them. so keep mx1 for now would be a safe option.

I used most of these textbooks for prelim and I think jacaranda is the best one. if you are looking for prac I think excel isn't too bad for prac, but the content isn't as good as jacaranda, so maybe you can just go to the school/local library and copy the prac.

what are trying to do man ? hsc is all about individualised performance, and no matter how high or low your school rank is, you will get what you deserve at the end, so just focus on yourself and try to improve on your weaknesses (i.e. English), and I'm sure you will be fine.

this is a hard one - maybe 93~96+ depends on english.

exclude SOR - 93+

93+

nay for me. because i get no work done.

basically yeah. dont quote me on this but i heard the difference between adv maths and science (major in maths) is that you learn a few more theory/further theory in each course.

have to disagree this. i found that 2u/3u cambridge arent really good but that's only me. in 2U/3U: fitzpatrick > cambridge in 4U: terry lee >>>>>>>>>> cambridge > fitzpatrick

no problem. thanks in advanced(: