If `vec(a)` be a unit vector, then :-

If vec(a) is a non-zero vector of modulus a and lamda is a non-zero scalar and lamda vec(a) is a unit vector, then

If vec a\ is a unit vector, then find | vec x| in each of the following: ( vec x- vec a)dot'( vec x+ vec a)=8

If vec a\ is a unit vector, then find | vec x| in each of the following: ( vec x- vec a)dot'( vec x+ vec a)=12

If vec(a) and vec(b) are two unit vectors, then the vector (vec(a) + vec(b)) xx (vec(a) xx vec(b)) is parallel to

If vec(a) is a unit vector such that (vec(x) - vec(a)).(vec(x) + vec(a)) = 8 find |vec(x)| .

If vec a is a unit vector,then find |vec x| in each of the following: (vec x-vec a)vec x+vec a=12

If vec a is a unit vector,then find |vec x| in each of the following: (vec x-vec a)vec x+vec a=8

If vec(a) and vec(b) are unit vectors, then find the angle between vec(a) and vec(b) , given that (sqrt(3)vec(a) - vec(b)) is a unit vector.

If vec a and vec b are unit vectors, then angle between vec a and vec b for sqrt(3)vec a - vec b to be unit vector is