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In theory you can do what you propose (see my previous post), but you’ll need your school’s support.

OP can do ext 2 in Year 11 next year if he completes preliminary extension this year. He can then study advanced, ext 1 and ext 2 next year and on the day that adv maths & ext 2 exams are held, he can choose to sit ext 2. This is from the combination of experiences of my elder daughter & my son.

If you are going to continue to invest in tutoring, I’d suggest consolidating everything you should know in Yr 11 (advanced & extension) before tackling Yr 12 content. For a start, make sure you fully understand every concept related to the marks you lost on last term’s 3U test, because you need...

For Q9, where the reaction is reversed, we take the reciprocal of the K of the forward reaction: K = 1/0.41 = 2.44 (to 2 d.p.)

Recall that the equation for calculating equilibrium constants for each reaction is: For question 8, the overall reaction is a combination of the forward reaction of the first reaction and the reverse reaction of the second, so we have to multiply K1 by the reciprocal of K2, or in otherwise...

I get that - it was more the general principle of communicating. That one should demonstrate understanding that when a proof is required, every step should be proven, so it’s unequivocal to state Bertrand‘s postulate (proven) or Bertrand’s postulate (now theorem). I’m not a maths marker (maths...

I guess technically, in an exam or competition, one would need to add that the postulate is now a theorem /has been proven, to show that you understand that a postulate can’t be used to prove another maths statement.

The symbols represent sets of numbers with specified conditions.

May also be of possible interest to some to note that there are Commonwealth funded courses and non funded courses. Non funded programs like Bond University’s are prohibitively expensive for the vast majority of students, however because most families can’t afford the fees...

I’m not a teacher or HSC marker, but at postgrad level, rounding to correct sig fig is for reporting outputs/results. For ongoing calculations, I would expect every step to be as accurate as possible to minimise the error of the final result.

I do agree with @Galactic Drama, but unfortunately this is a bad question and open to interpretation. The sig fig for an answer should only be to the least sig fig of any measurement performed, but it could be argued that this applies to measurements performed within the practical exercise and...

As you’ve said, they are structural isomers. Potassium permanganate doesn’t react with tertiary alcohols, therefore B must be the tertiary form of butanol, whereas C is likely to be primary butanol. Note: Given alkenes have the common molecular structure of CnH2n with one carbon and two...

Have you completed the preliminary extension and 2U courses? If you are studying them concurrently, then that might explain your difficulties with 4U at this stage. My son studied preliminary HSC in Yr 8, 2U in Yr 9 and 3U in Yr 10, so when he did 4U in Yr 11, he already had the full foundation...

From my daughter’s HSC class of 2015, there are two engineering graduates who did not study 4U maths at all, but they got through engineering at Uni. Another student did study the whole 4U curriculum (attended all the classes & completed all assessments) but chose to sit the 2U paper on the day...

Looks like Mr Lee has more recently authored maths textbooks.

Since coaching colleges send medical students into UMAT/ UCAT exams specifically to access their question banks and employ same medical students as coaches for med school interviews despite applicants having signed nondisclosure agreements, I am sceptical about their position on ‘copyrighted...

This is my tip after decades of learning (which I‘ve passed on to my kids and they’ve found very effective) - when you first learn something, make sure you fully understand everything about what you are learning. If you don’t fully understand, chances are there are/is gap(s) in your knowledge at...

My interpretation of OP’s post & thread title is that she is currently doing extension 1 maths in Yr 11 and is seeking advice on whether she should try to get into her school’s future MEx2 class for Yr 12. OP, most of the posts in this thread are encouraging you to do so, and as advised, so...

That was exactly my son’s position in Yr 11 as a MEx2 accelerated student. He had 147/150 by sitting Adv maths in Yr 9 and MEx1 in Yr 10. For his time line, it was worth while to sit MEx2 in Yr 11 as there really wasn’t much to lose, but when he didn’t achieve a state rank as he’d hoped, he...

Since you enjoy maths and are doing reasonably well, it’s worth the try. Do close any gaps you have though. Are you providing or receiving the 4 hours of maths tuition? If the latter, then you should have ample opportunity to ask your tutor to clear up any questions you have. Maths Extn 2...