Question

12. The coordinate systems
(a) i.i=j.j=k.k=1,
(b) ij=j.k=k.i=0,
(c) ixi=jxj=kxk=0 and
(d) ixj=-k kxi=j jxk= -i.
Which one of them is incorrect?

A.(a)
B.(b)
C.(c)
D. (d)​

Answer 1

Answer:

d... use cross product of unit vectors..