4) Find a unit vector that is parallel to the xy- plane and it is perpendicular to the vector 4?i? - 3?j? + k?.
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This means that the z-component of the vector should be 0. Let's call this vector $\vec{v} = a\hat{i} + b\hat{j} + 0\hat{k}$. Now, we want this vector to be perpendicular to the given vector $\vec{u} = 4\hat{i} - 3\hat{j} + \hat{k}$. Two vectors are perpendicular Show more…
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