Question

d) A
5. Three vectors A, B and C add up to zero. Find which is false.
a) A (BXC) is not zero unless B, C are parallel
b) A (BXC) is not zero unless B, C are anti-parallel
c) If A, B, C define a plane, A X (BXC) is in that plane
d) A (B.C) = |A|B|C| -> C2 = A2+B2​

Answer 1

Explanation:

A (B×C) is not unless B,C are parallel