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# FP3 Vectors question Watch

7ii

Can someone explain, I can get the result UM lies on G, but not the deduction.
2. bump
3. (Original post by 16characterlimit)

7ii

Can someone explain, I can get the result UM lies on G, but not the deduction.
This falls out by thinking about symmetry. You've shown that (1/3)(u+v+w) lies on G by considering UM. The same reasoning applies to VN and to WP.

If you want to crunch the algebra, you can simply write down the value of VN and WP by permuting the expression for UM.
4. (Original post by Gregorius)
This falls out by thinking about symmetry. You've shown that (1/3)(u+v+w) lies on G by considering UM. The same reasoning applies to VN and to WP.

If you want to crunch the algebra, you can simply write down the value of VN and WP by permuting the expression for UM.
alright I got it thanks

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