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    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..
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    (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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