repunit numbers | don steward

powerpoint is here

division practice

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harder GCSE vector questions | don steward

as far as I am aware these sorts of questions have only been posed by the Edexcel exam board in England (apologies if I’ve missed some from other boards)

they continue an erstwhile tradition – a general result seems to have been known to and used by Menelaus (~100CE) in his work on spherical geometry (but not involving vectors)

a good focus on using vectors to prove (decent) results that can involve many variations of ratios

a powerpoint is here

 

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