1. Example: Determine the angle between the vectors A and B.

2. Vector Product (Cross-product)
There are two different methods for determining the vector product between any two vectors: The Determinant method and the Cyclic method
Determinant Method
Cyclic Method
Rewrite the j term as to get an identical expression

3. The direction of the resultant vector, for a right-handed coordinate system, for a vector product can be determined using the right-hand rule.
Fingers point in the direction of the second vector
The vector product looks at the product of two vectors which are perpendicular to each other, and who are also perpendicular to the resultant vector.
Thumb points in the direction of first vector.
Palm points in the direction of resultant vector.
Example: Determine the magnitude and direction of the area of a parallelogram described by the vectors r1 and r2 which are used to describe the length of the two sides. y x r1 r2
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