sider the following matrices 1 0 0 Z 1 a Find scalars a and b such that Z ax by a b X 1 Y 2 W a b c 1 1 b Do there exist scalars a and b such that W ax bY Yes O No c If ax bY CW 0 is it true that a b c 0 Yes O No d Find scalars a b and c not all equal to zero such that aX bY cZ C