If `hata,hatb` and `hatc` are three unit vectors satisfying `hata-sqrt3hatb+hatc=hat0` then find the angle between `hata` and `hatc`.

If veca,vecb and vecc are three unit vectors satisfying veca-sqrt(3)vecb+vecc=vec0 then find the angle between veca and vecc ?

If veca,vecb and vecc are three unit vectors satisfying veca-vecb-sqrt3 vecc=0 then the angle between veca and vecc is:

If hata,hatb and hatc are three unit vectors inclined to each other at an angle theta . The maximum value of theta is

If hat a , hat b ,a n d hat c are three unit vectors, such that hat a+ hat b+ hat c is also a unit vector and theta_1,theta_2a n dtheta_3 are angles between the vectors hat a , hat b ; hat b , hat ca n d hat c , hat a respectively, then among theta_1,theta_2,a n dtheta_3dot a. all are acute angles b. all are right angles c. at least one is obtuse angle d. none of these

If hata and hatb are unit vectors inclined at angle theta then (1)/(2)|hata+hatb| is

If veca, vecb and vecc are three units vectors equally inclined to each other at an angle alpha . Then the angle between veca and plane of vecb and vecc is

If vec a and vec b be two unit vectors such that vec a+ vec b is also a unit vector, then find the angle between vec a and vec b

Find a unit vector vecc if -hati+hatj-hatk bisects the angle between vectors vecc and 3hati+4hatj .