Question

If unit vectors e1 and e2 are inclined at angle 2x and |e1-e2|<1 then for x 0,pi

Answer 1

Step-by-step explanation:

Let angle be x between vectors a and b (just fr convenience while typing ;-) ) ... Why we use sin theta and cos theta in an angle? ... Lets assume angle between the unit vectors, a and b, is x.