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cis is fine nobody cares!

I said 60/70 raw for E4.

Or be like me and do the same maths for the rest of your life! See you all on stream tomorrow

Oooh that's lit, I'm sure that would do it and funnily enough sum to product also produces a divisibility by 18 argument.

Yes induction like you said works out quite quickly...I tried to be special and uploaded a solution involving modulo arithmetic, conceding that induction is probably what they wanted.

These took a while to write out - I wonder how they will mark 16bii), the justify definitely deserves 1 mark beyond just recognising a pattern. My preferred way to answer this question is using modulo 18, NESA's likely preference is mathematical induction. Either way this is a demanding mark...

https://drive.google.com/file/d/1cCH7QswKfCsTIJPGLM0bHKKvGaijPqhI/view?usp=sharing

https://drive.google.com/file/d/1cCH7QswKfCsTIJPGLM0bHKKvGaijPqhI/view?usp=sharing I've attached a link to the scuffed draft attempt from the livestream - will work on my versions of the interesting questions later this week when I catch a break with my work. Cheers

I remembered someone suggested the disprove type question - I mentioned it but apologies for not giving the shoutout!

I'm wrecked, doing this live I think I barely scraped a 90 raw - not knowing how to do a pulley is humbling.

YT: Epicmaths Catch you guys!

Stream started hop on if you'd like guys! YT: Epicmaths

Good luck everyone signing off for the evening, see you all hopefully on tomorrow's livestream approx 6pm! (on the same YT as account name).

There are two ways I know about in finding the equation of a plane: 1. The dot product between a perpendicular vector and a vector between (x y z) and the foot of that perpendicular should be 0. Not suitable for this question. 2. If you already have two lines on that plane, then any point can be...

Yes I will hang around at work on Monday and try to get a copy of the paper and aim for a 6pm start - might go for a more clickbait title this year. I'll be upfront I have not officially taught a cohort with this new syllabus, so my working out for the vectors and newer projectile stuff might...

Yes square of velocity as resistance should only apply for motion in 1 dimension. For projectiles its explicitly ruled out in the 2026 update as certain current textbooks that try to treat it actually do it wrong. I believe the HSC writers know better than put a quadratic drag projectile into...

I'm gonna offer an alternative angle - given the syllabus revision coming up in 2026 - NESA is realising the lack of clarity in the original syllabus and will play by the books this year and until the new syllabus is released - meaning they will stick to tried and true questions, or am I coping...

Uhm in Q1, letting k be even and k be odd ie k=2p and k=2p+1 works just fine. Not sure the fuss with 4...but this comes from this number theory concept called modulo arithmetic that claims that every integer k can be written as either 4p, 4p+1, 4p+2, 4p+3, because when you reach 4p+4 you looped...

This is amazing Sam I've actually forgotten this trick exists, although the version I've seen gets the same thing through squaring and adding eq1 and 2. I always recommend students try get the values through inspection before they delve into time wastage >.<

From what I've seen of students showing me their Dr Du homework - they ask for too many unnecessary / out of current syllabus questions...my opinion is that it becomes a point of diminishing returns to invest this much time into that kind of work - you are better off devoting your time to other...