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

1 Answer
George C.
Nov 14, 2016

[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]

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