Question

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

Answer 1

`[1, -2, -3] xx [1, 3, 4] = abs((i, j, k),(1, -2, -3),(1, 3, 4))`

`color(white)([1, -2, -3] xx [1, 3, 4]) = (-8+9)i+(-3-4)j+(3+2)k`

`color(white)([1, -2, -3] xx [1, 3, 4]) = [1, -7, 5]`