If A=[3x01]andB=[9160−y],find x and y when A2=B
Now
A2=A∗A=>[3x01]*[3x01]
=> [93x+x01]
=> [94x01]we have A2=B
two matrices are equal if each and every corresponding element is equal
=>[94x01] =[9160−y]
=>4x = 16 and 1=-y
=> x = 4 and y = -1