2024 Ext2 HSC Solutions to Q10 and Q16bii (1 Viewer)

epicmaths

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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 to achieve if they commit to marking the justification properly.
 

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