School is getting old B-Rob. We need to change school to be like 3 days a week, but thanks for not giving us bookoo homework. This week we did some stuff with vectors, except these had a third dimension. Everything we do for them is exactly the same, except you just add an extra set of numbers.
The formula used is- square root (x2-x1)^2+(y2-y1)^2+(z2-z1)^2
Ex: Find |AB| for the points ( 2,3,2) (6, 7, 4)
Square root (6-2) ^2 + (7 – 3) ^2 + (4 – 2)^2
16 + 16 +4 = 36
Square root 36 = 4; |AB| = 6
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