If `|vecA|` = `|vecB|`, then is it possible that `vecA + vecB = vec0` ? Explain.

If |vecA| ne |vecB| , then is it possible that vecA +vecB =0 ? Explain.

If vecA*vecB=|vecAxxvecB| then the angle between vecA and vecB is

If vecA+ vecB+vecC =0, then show that vecA xx vecB= vecBxxvecC= vecCxx vecA .

If |veca+vecb|=|veca-vecb| , then show that vectors veca and vecb are perpendicular to each other.

If veca, vecb, vecc and vecd are distinct vectors such that veca xx vecc = vecb xx vecd and veca xx vecb = vecc xx vecd . Prove that (veca-vecd).(vecb-vecc)ne 0

If vecA+vecB=vecB-vecA . Can you find out the angle between vecA and vecB ? Explain.

If |veca|=|vecb|=|veca+vecb|=1 then find the value of |veca-vecb|

If veca and vecb are non - zero vectors such that |veca + vecb| = |veca - 2vecb| then

If veca and vecb are two vectors, such that |veca xx vecb|=2 , then find the value of [veca vecb veca xx vecb] .

If veca and vecb are unequal unit vectors such that (veca - vecb) xx[ (vecb + veca) xx (2 veca + vecb)] = veca+vecb then angle theta " between " veca and vecb is