" 1.What is the angle between a and "-(3/2)" a vector? "

What is the angle between 3a and -5a? What is the ratio of magnitude of two vectors?

What is the angle between 3a and -5a? What is the ratio of magnitude of two vectors?

What is the angle between vectors veca and vecb ?

What is the angle between two unlike parallel vectors ?

If the angle between the vectors vec(a) and vec(b) is (pi)/(3) , what is the angle between -5vec(a) and 6 vec(b) ?

If a and b are unit vectors, then what is the angle between a and b for sqrt3a-b to be a unit vector?

If veca and vec b are unit vectors, then what is the angle between veca and vecb for sqrt3 veva - vecb to be a unit vectors ?

If veca and vecb are unit vectors then what is the angle between veca and vecb for sqrt(3)veca-vecb to be a unit vector?

If a and b are unit vectors, then what is the angle between a and b for sqrt3a - b to a unit vector ?