If `|vec a xx vec b|=4,|vec a* vec b|=2` then `|vec a|^2|vec b|^2` is equals to-

If |vec a xx vec b| = 4 and |vec a . vec b| = 2, then |vec a|^(2) . |vec b|^(2) =

If |vec a| = 2, |vec b| = 5 and |vec a xx vec b| = 8 then vec a . vec b

If | vec(a) xx vec(b) | =4 and | vec(a). vec(b) |=2 , then | vec( a) |^(2) | vec( b) | ^(2) is equal to

If vec a and vec b are unit vectors such that |vec a xx vec b| = vec a . vec b , then |vec a + vec b|^(2) =

If vec alpha and vec beta be two unit vector.The maximum | vec a + vec b | ^ (2) - | vec a-vec b | ^ (2) value of (| vec a + vec b | ^ (2) - | vec a-vec b | ^ (2)) / (| vec a + vec b | ^ (2) + | vec a-vec b | ^ (2)) is equal to

If vec u = vec a - vec b, vec nu = vec a + vec b and |vec a| = |vec b| =2 , then |vec u xx vec nu| is

Let vec a , vec b , vec c are three vectors , such that vec a + vec b + vec c = vec 0 .If , |vec a|=3 , |vec b|=4 and | vec c|=5 , then the value of, |vec a+vec b|^(2) + |vec b-vec c|^(2) + |vec c+vec a|^(2) , equal to :

if | vec(a) xx vec(b) |^(2) +| vec(a). vec(b)|^(2)= 144 and | vec(a) | =4 then |vec(b) | is equal to

If |vec(a) | = 3, | vec(b) | =4 and | vec(a) xx vec(b) | = 10 , then | vec(a). vec(b) |^(2) is equal to

If |vec(a) | = 10 , | vec(b) | =2 and vec(a). vec(b) = 12 , then | vec(a) xx vec(b) | is equal to