[" 27.The two vectors "vec A" and "vec B" that are parallel to "],[" each other are "]

Two vectors vec(A)and vec(B) are at right angles to each other then

Two vectors vec(A)and vec(B) are at right angles to each other then

If |vec a+vec b|=|vec a-vec b|, show that the vectors vec a and vec b are perpendicular to each other.

If the vectors vec(k) and vec(A) are parallel to each other, then what is k vec(k) xx vec(A) equal to?

Two vectors vec(a) and vec(b) are perpendicular to each other if vec(a).vec(b)=0 .

If the vectors vec(k)and vec(A) are parallel to each other, what is k vec(k)xxvec(A) equal to ?

If the vectors vec a and vec b are perpendicular to each other,then a vector vec v in terms of vec a and vec b satisfying the equations vec v*vec a=0,vec v*vec b=1 and [vec vvec avec b]=1

For two vectors vec(A) and vec(B) if vec(A) + vec(B) = vec(C) and A +B = C , then prove that vec(A) and vec(B) are parallel to each other.