If `|a| = 3,|b| = 4` and the angle between a and b is `120^(@)`, then `|4a + 3b|` is equal to

If |a| = 1, |b| = 2 and the angle between a and b is 120, then {(a + 3b) xx (3a - b)}^(2) =

If a is perpedicular to b and c|a| = 2, |b| = 3 |c| = 4 and the angle between b and c is (2pi)/(3) , then [a,b,c] is equal to

If |vec a|=3,|vec b|=4and the angle between aandb is 120^(@), then find the value of |4vec a+3vec b|

If a is perpendicular to b and c, |a| = 2, |b| = 3, |c| = 4 and the angle between b and c is 2pi // 3 then [a b c] =

If |A|=2 and |B|=4 and angle between then is 60^(@) then |A-B|

If |A|=2 and |B|=4 and angle between then is 60^(@) then |A-B|