Given and We need to find the magnitude of the vector . Recall the cross product of two vectors and is Here, we have (a 1 , a 2 , a 3 ) = (1, 3, –2) and (b 1 , b 2 , b 3 ) = (–1, 0, 3) Recall the magnitude of the vector is Now, we find . Thus,

If and , find .

If and, find.

Given and

We need to find the magnitude of the vector.

Recall the cross product of two vectors and is

Here, we have (a₁, a₂, a₃) = (1, 3, –2) and (b₁, b₂, b₃) = (–1, 0, 3)

Recall the magnitude of the vector is

Now, we find.

Thus,