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
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
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...