math
posted by Edwin .
Find the vector eqn which passes through (1,1,2) and is parallel to the vector which is perpendicular to both 2i+2jk and 3i+2j+k

take the crossproduct to (2,2,1) and(3,2,1)
which is (4,1,10)
So your line must have that directions
so the vector equation is
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r = (1,1,2) + k(4,1,10)