Q4.9Multiple choice
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|→ → C2=A2+B2