Find the inverse of the matrices, if it exists.
The number of values of k for which the system of the equations (k+1)x+8y=4kandkx+(k+3)y=3k−1 has infinitely many solutions is 0 b. 1 c. 2 d. infinite
Given a=x/(y−z),b=y/(z−x),andc=z/(x−y),wherex,y,zandz are not all zero, then the value of ab+bc+ca is 0 b. 1 c.−1 d. none of these