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Example 9: Finding a Vector Product

Find A × B where

A = 4i - j + k, B = 2j - k.

10_vectors-157.gif

A, B and A × B are shown in Figure 10.4.6.

The vector products of the unit vectors i, j, and k are

10_vectors-158.gif

Notice that A · B is a scalar but A × B is a vector.

10_vectors-159.gif

Figure 10.4.6


Last Update: 2006-11-15