HSC 2013 Maths Marathon (archive) (3 Viewers)

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ocatal

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Re: HSC 2013 2U Marathon



Here's the continuation of the question:



 
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Najji

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Re: HSC 2013 2U Marathon

A three line variant of the answer (despite it being just a rearrangement of the aforementioned answers is):




God, can't split the lines apart!
Which formula is this? And why did you make it cos 90-a??
 

Menomaths

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Re: HSC 2013 2U Marathon

Answer says (4,3) :')
 

Menomaths

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Re: HSC 2013 2U Marathon

Yeah, then that should be the answer as 3 great minds have come up with the same result.
 

ocatal

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Re: HSC 2013 2U Marathon

How can you tell which pair of points is the diagonal and which is the side of the parallelogram?
 
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