Angle between `vec(a)` and `vec(b)` is `60^(@)` then

The angle between vec(a) and vec(b) " is " 0^(@) then angle between 2 vec(a) and -3 vec(b) is

If |vec(a)| = sqrt(3), |vec(b)| = 2 and angle between vec(a) and vec(b) is 60^(@) , find vec(a).vec(b) .

If vec a+vec b+vec c=0 and |vec a|=3,|vec b|=5 and |vec c|=7, show that the angle between vec a and vec b is 60^(@) .

If vec a+vec b+vec c=0 and |vec a|=3,|vec b|=5,|vec c|=7, show that the angle between vec a and vec b is 60^(@)

The angle between vec a and vec b is 30^(@) and the angle between vec b and vec c is 60^(@), the angle being measured in each case from the first vector to the second vector and in the counter clockwise direction.Compute |vec a+2vec b-3vec c|, given that vec a,vec b,vec c are three coplanar unit vectors.

Assertion: If |vec(A)+vec(B)|=|vec(A)-vec(B)| , then angle between vec(A) and vec(B) is 90^(@) Reason: vec(A)+vec(B)= vec(B)+vec(A)

If |vec a+vec b|=|vec a-vec b| .Prove that the angle between vec a and vec b is 90^(@) ?

Three vectors vec a,vec b,vec c are such that vec a xxvec b=3(vec a xxvec c) Also |vec a|=|vec b|=1,|vec c|=(1)/(3) If the angle between vec b and vec c is 60^(@) then