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

1 Answer
Dec 14, 2015

=[13,26,13]

Explanation:

The rule for cross products states that for two vectors, a=[a1,a2,a3] and b=[b1,b2,b3];

a×b=[a2b3a3b2,a3b1b3a1,a1b2a2b1]

For the two vectors given, this means that;

[4,~3,2]×[3,1,~5]

=[(~3)(~5)(2)(1),(2)(3)(~5)(4),(4)(1)(~3)(3)]

=[152,6+20,4+9]

=[13,26,13]