Question

What is the value of (A + B)CROSS PRODUCT(A-B) where A and B are vectors?

Answer 1

Answer:

+b) x (a -b) = a x a - a x b + b x a - b x b

but a x a = b x b =0

Also b x a = - a x b

therefor (a + b) x (a -b) = -2 a x b

Explanation:

I AM NOT DEADLY SURE