# Find a unit vector...

by MozAngeles
Tags: unit, vector
 P: 90 1. The problem statement, all variables and given/known data Find a unit vector orthogonal to A in the plane B and C if A=2i-j+k B=i+2j+k and C=i+j-2k 2. Relevant equations 3. The attempt at a solution Im thinking the solution is to take the cross product of B and C. and that would be the solution??
HW Helper
P: 6,214
 Quote by MozAngeles 3. The attempt at a solution Im thinking the solution is to take the cross product of B and C. and that would be the solution??
BxC would give satisfy the conditions yes, but you will need to get the unit vector of BxC.
 P: 90 So my answer would be 1/$$\sqrt{35}$$(5i+3k-j)?
HW Helper
P: 6,214

## Find a unit vector...

Yes, assuming you calculated BxC correctly.

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