Question

If A = [4 7] and B = [3 l], find:  A - B

Answer 1

A = `[(4 , 7)]_(1 xx 2)`      B = `[(3 , 1)]_(1 xx 2)`

A - B = `[(4-3 , 7-1)]`

= `|(1 , 6)|_(1 xx 2)`