coz (OM)a→ means (OM)2a(unit vector)[scalar multiplication!!!]
OM=scalar(length)[1]
coz (OM)a→ means (OM)2a(unit vector)[scalar multiplication!!!]
OM=scalar(length)[1]
Well.If two vectors are colliner then we can write so.Suppose a is parallel to b.And a is twice of b.So 2a→=b→
So how come there use of unit vector.I want to ask why a unit vector?