Question

When is |A + B| smaller than |A-B|, where A and B are vectors

Answer 1

Answer:

write full question bro

Answer 2

Answer = (a+b)×(a-b)=a×a -b×b +b×a -a×b

= 0 -0 +2(b×a)

=2(b×a)

[where a×a is equal to zero as the angle of a vector to itself is zero and -(a×b) = (b×a) .]