If `vec a` and `vec b` are unit vectors inclined to `x-axos` at angle `30^@` and `120^@` then `|vec a + vec b|`

If vec(a) and vec(b) are unit vectors inclined at an angle alpha , then the value of | vec(a) - vec(b)| is

If vec(a) and vec(b) are two units vector inclined at an angle of (pi)/(3) , then value of |vec(a) + vec(b)| is

If vec(a) and vec(b) are two unit vectors inclined at an angle pi/3 , then the value of |vec(a)+vec(b)| is

If vec a and vec b are two vectors of the same magnitude inclined at an angle of 30^(@) such that vec a.vec b=3, find |vec a|,|vec b|

If vec(a) and vec(b) are unit vectors inclined at an angle of 30^(@) to each other, then which one of the following is correct?

If vec a and vec b are two vectors of the same magnitude inclined at an angle of 30^0 such that vec adot vec b=3, find | vec a|,| vec b| .

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?