Asked by Tim
Using the definition of the scalar product, find the angles between the following pairs of vectors.
A = - 4 i + 2 j + 2 k and B = - 3 j - 3 k
I understand to do [(A).(B)]/|A|*|B| = cos theta; but I'm getting 0 for |A| and don't know how to access it from there.
A = - 4 i + 2 j + 2 k and B = - 3 j - 3 k
I understand to do [(A).(B)]/|A|*|B| = cos theta; but I'm getting 0 for |A| and don't know how to access it from there.
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