Question

If Abar =-icap+2jcap+3kcap
Bbar =2icap+5jcap-3kcap
Cbar =-icap-3jcap-2kcap
Dbar =icap+jcap+kcap
Find
1)Abar.Bbar , Bbar. Cbar, Cbar. Abar
2)(Abar +Bbar). (cbar. dbar)
3)Dbar.(Cbar +Bbar)
4)comp.of B along A
5)angle between Abar and Dbar
6)(Abar-Cbar).(Dbar-Bbar)​

Answer 1

Answer:

HOPE THIS WOULD HELP YOU

Answer 2

Answer:

=1 +2 =3+4, ? ! :-= 1 + 2= 3 + 4= 7 = . = (1 +2) (7)=> . = 1.7 (.) + 2.7 (.) .= 1 .=0=> . = 7*1 + 14*0=> . = 7 .