Three vectors **A,B** and **C** add up to zero. Find which is false.

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

(b) **(A×B).C** is not zero unless** B,C** are parallel

(c) If **A,B,C** define a plane, **(A×B) ×C** is in that plane

(d) **(A×B). C**=**|A||B||C| **→ C^{2}=A^{2}+B^{2}