Question

What is the cross product of `[1, 3, 4]` and `[3,2, 5]`?

Answer 1

`< 7, 7, -7 >`

Explanation:

There are a couple ways to do this.
Here is one:

The cross product of `< a_x,a_y,a_z > xx < b_x,b_y,b_z > = <c_x,c_y,c_z>`
where`{ (c_x=a_yb_z-a_zb_y),(c_y=a_zb_x-a_xb_y),(c_z=a_xb_y-a_yb_x):}`

Using this method:
with `{:(a_x,a_y,a_z,,b_x,b_y,b_z),(1,3,4,,3,2,5):}`

`c_x=3xx5-4xx2=7`
`c_b=4xx3-1xx5 =7`
`c_z=1xx2-3xx3=-7`