Question

A =2i^3j^ and b =2k^ . Then what is the value of a.B?

Answer 1

Answer:

A=2i+3j and b=2k

as we know that i.i=1 j.j=1 and k.k=1 and also

i.j=0 j.k=0 and k.i=0 so the answer of a.b=0