Precalc
posted by Grace .
Assume that points A(5, 10, 1), B(6, 3, 6), and C(12, 1, 4) are on a plane.
Find vector AB and vector AC.

Precalc 
Damon
AB = (65) i + (310) j + (61) k
= i 7j + 5k
do AC the same way
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