If vector ` vec a+ vec b` bisects the angle between ` vec a` and ` vec b` , then prove that `| vec a|` = `| vec b|` .

If vector vec a+vec b bisects the angle between vec a and vec b, then prove that |vec a|=|vec b|

If vec a and vec b are two vectors such that vec a + vec b is perpendicular to vec a - vec b ,then prove that |vec a| = |vec b| .

Find the angle between two vectors vec a and vec b, if |vec a xxvec b|=vec a*vec b

Find the angle between two vectors vec a and vec b , if | vec a xx vec b|= vec a . vec b .

If theta is the angle between the vectors vec a and vec b then (|vec a xx vec b|)/(|vec a . vec b|) =

If |vec a+vec b|=|vec a-vec b| .Prove that the angle between vec a and vec b is 90^(@) ?

If vec a and vec b are unit vectors find the angle between vec a+vec b and vec a-vec b

If vec a and vec b are unit Vectors, then what is the angle between vec a and vec b so that sqrt(2) vec a- vec b is a unit vector?

If vec a and vec b are unit Vectors,then what is the angle between vec a and vec b so that sqrt(2)vec a-vec b is a unit vector?