(a) If does it necessarily follow that A = 0 or B = 0? Explain. (b) If does it necessarily follow that A = 0 or B = 0 ? Explain.

Solution 25DQ If dot product is zero,it does not apply that either of the vectors are zero.it employs vectors are orthogonal. A.B = A| || | Where is angle between them.if one of them are zero vector,the dot product will be also zero,because the vector is both perpendicular and parallel with every other vector. If cross product of two vector is a vector. A × B = A| || | n Where nis vector orthogonal...