8) Consider two vectors A and B where: Ā= -6.00 i +3.00 9 +3.00 Â

B = 6.00 î - 8.00 ġ + 4.00 k

=

If we want to find the angle between these two vectors, we have two possible options: we can

use the magnitude of the dot product, or the magnitude of the cross product.

A B = AB cos(0)

|X XB= AB sin(0)

However, these approaches give conflicting answers for the value of 0.

a) What is the correct value of theta?

b) Why does the other formula give the wrong answer?