If a − 2 4 5 and b 1 3 − 6 July 8, 2019 16 32 64 128 A 1 2 3 4 5 6 If 4 2 5 = a − 1 2 3 then a = If a= 2 −3 5 −4 −6 1 b= −1 2 2 2 0 3 and c = 4 3 −1 4 −2 1 show that (a+b)+c = a+(b+c)
