Which rule do i use. H E L P 1.The statement x+y=y+x is true based on which axiom for addition?
2.(qr)t=q(rt) follows which axiom for multiplication?
3.The statement x⋅1=x is true based on which axiom for multiplication?
4.The statement x+y∈R is true based on which axiom for addition?
5.a(b+c)=ab+ac follows which axiom for multiplication?