!!DON'T SEND ANY LINKS"!!Answer 31st question. Q.31. If A = 1 4 0 - 1 a n d B = 2 x 0 - 1 2 , find the value of x if AB = BA. Share with your friends Share 0 Brijendra Pal answered this Hi, AB = 140-12x0-12= 2x-2012BA = 2x0-12 140-1= 28-x012Now given that AB = BA so 2x-2012=28-x012comparing we get x-2 =8-x2x = 10 x = 5 0 View Full Answer
