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Edexcel FP3 - 27th June, 2016

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Original post by Anon-
good paper, praying for 100ums 👐


Do you remember any answers you have put down?
Do u remember what your line of intersection between the two planes was???
I got something like r-(a weird set of co-ordinates that satisfied the two cartesian equations) * (11, -1, 8)
Reply 723
Original post by oShahpo
Do you remember any answers you have put down?


not really, is there a specific question you want? i could probably remember what I did for it
Original post by Anon-
not really, is there a specific question you want? i could probably remember what I did for it


Do you remember the cartesian equation for the plane?
Was it (some x + some y + some z) = 8?
Original post by oShahpo
I got something like r-(a weird set of co-ordinates that satisfied the two cartesian equations) * (11, -1, 8)


yess got the same, yh the set of coordinates are all depends on what you considered as lambda, i considered z, but the direction is the important part
Good luck people, remember sitting this beast last year. Btw I wouldn't write down the answers just yet as some people might've sat S2 first
Original post by Anon-
not really, is there a specific question you want? i could probably remember what I did for it


What did you get for the eigenvalue? 9?
And what did you get for the y-coordinate of Q?
Original post by MarocMan
yess got the same, yh the set of coordinates are all depends on what you considered as lambda, i considered z, but the direction is the important part


anybody have the ans?
Original post by oShahpo
Do you remember the cartesian equation for the plane?
Was it (some x + some y + some z) = 8?


7x+5y-9z=8 i think
Original post by oShahpo
Do you remember any of the answers?


I sat it last year :smile: hope it went well :smile:


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What was the position vector for you guys?
Original post by Anon-
yeah i got (1, -1/11, 8/11) for direction vector i'm pretty sure 👍


you considered x as lambda i think thats why, but that seems right, dont forget line of intersections have many alternative answers
Original post by MarocMan
7x+5y-9z=8 i think


Yes you brilliant man, yes!
I put x = 1 and got some really unsavoury co-ordinates.
For the y coordinate question I got like 25/3-32/15 root 2
Reply 735
argh people have s2 clashes, i'm gonna edit all my previous posts, i suggest you do the same
Original post by Major-fury
For the y coordinate question I got like 25/3-32/15 root 2


Major-fury, thou art correct!
Original post by oShahpo
What did you get for the eigenvalue? 9?
And what did you get for the y-coordinate of Q?


yes lambda=9 for me too, and Q y-coordinate i think was (128/15)-(32/15)root2
Reply 738
Only real issue is for me is probably some accuracy marks dropped on the vector question. Nice Reduction proof though. What do you reckon for 100 ums lads?
Original post by Anon-
argh people have s2 clashes, i'm gonna edit all my previous posts, i suggest you do the same


I thought they aren't allowed access to the Internet

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