Find the equation of the line passing through the origin and perpendicular to the vectors a = (0, - 1,3) and B = (1,2,1)

Find the equation of the line passing through the origin and perpendicular to the vectors a = (0, - 1,3) and B = (1,2,1)

Because the cross product of two vectors is perpendicular to two vectors at the same time, we find the cross product of a vector and B vector
a x b=-7i+3j+k
Take any parallel vector, here take (- 7,3,1)
From the point equation, the linear equation is: X / - 7 = Y / 3 = Z / 1