" When "vec A*vec B=-|vec A||vec B|" ,then "

When vec(A)*vec(B)=-|vec(A)||vec(B)|, then

For any two vectors vec a\ a n d\ vec b write when | vec a+ vec b|=| vec a|+| vec b| holds.

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)

When vec(A).vec(B)= -|A| |B| , then

When vec(A).vec(B)= -|A| |B| , then

For tow vectros vec A and vec B | vec A + vec B| = | vec A- vec B| is always true when.

For two vectors vec A and vec B | vec A + vec B| = | vec A- vec B| is always true when.

For non-zero vectors vec a and vec b if |vec a+vec b|<|vec a-vec b|, then vec a and vec b are