Let `A=((1 , 2), (3, 4)) andB=((a , 0), (0 , b)), a , b in N` ) Then, (a) there cannot exist any `B` such that `AB=BA`

Let A=((1 , 2), (3, 4)) andB=((a , 0), (0 , b)), a , b in N Then, (a) there exist exactly one B such that AB=BA (b) there exist exactly infinitely many B's such that AB=BA (c) there cannot exist any B such that AB=BA (d) there exist more than one but finite number of B's such that AB=BA

Let A=[(2,3),(5,7)] and B=[(a, 0), (0, b)] where a, b in N . The number of matrices B such that AB=BA , is equal to

Let A=[(2,3),(5,7)] and B=[(a, 0), (0, b)] where a, b in N . The number of matrices B such that AB=BA , is equal to

Let A = [(1,3,2),(0,1,4)] and B = [(1,4),(0,1),(2,3)] . Show that AB ne BA

Let A={:[(1,2),(3,4)]:},B={:[(-1,-2),(-4,-3)]:} , find AB and BA.

Let A={:[(1,2),(3,4)]:},B={:[(-1,-2),(-4,-3)]:} , find AB and BA.

Let A=[{:(1,0),(0,-1):}] and B=[{:(1,x),(0,1):}] . If AB=BA then what is the value of x ?

If A = [(2,1),(1,3)] and B = [(3,2,0),(1,0,4)] , then find AB. Find BA if it exists.