If a,b are the magnitudes of vectors veca & vec b and veca vecb=0 the value of |vecx xx vecb| is

If a,b are the magnitudes of vectors veca & vec b and veca vecb=0 the

1.	If a,b are the magnitudes of vectors veca & vec b and veca vecb=0 the value of \|vecx xx vecb\| is
Answer» 0 AB `SQRT(ab)` `a//B` ANSWER :B