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# More P6 Help... watch

1. Can someone please explain to me how to answer Q7 b) ii) on this P6 past paper:

http://www.aqa.org.uk/qual/gceasa/qp...W-MS-Jan03.pdf

Cos it's driving me crazy and I'm going round in circles. I think you must have to scalar product with the new r, but I'm not sure...
2. The link is to the mark scheme not the paper. Post the link to the question and i'll give it a go
3. Sorry mate, i must have dropped off...

http://www.aqa.org.uk/qual/gceasa/qp...W-QP-Jan03.pdf

4. PQ=(t-1, 1+s, 2+2t-3s) and
PQ= (2λ, 3λ, -λ )
t-1=2λ
1+s=3λ
2+2t-3s=-λ

substitute and solve for λ.

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Updated: June 8, 2004
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