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# C4 vectors

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1. Wite down normal vectors to the planes 2x -y +z=2 and x-z= 1

Am I having a blonde moment?! It's only worth like 1 mark..
2. (Original post by hhh123)
Wite down normal vectors to the planes 2x -y +z=2 and x-z= 1

Am I having a blonde moment?! It's only worth like 1 mark..
Think about what the 'ax + by + cz = k' form tells us directly, that is, what do the coefficients a, b and c tell us?

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