Two unit vectors that are normal to the plane

earthyearth
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Homework Statement


Find two unit vectors that are normal to the plane determined by the points A(0,-2,1), B(1,-1,-2), and C(-1,1,0)

I found the cross-product of the two position vectors then i got 8i+4j+4k then i divided that by the magnitude to get the unit vector but how do i find the other one? can i just add a coefficient in front of the unit vector?
 
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Take the opposite direction.
 

Thread 'Finding the nth roots of a complex number'

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