Prove that if (x,y)=1; then (x+y, xy)=/. Prove that if (ajbit, then latb, a²= ab + b², El or 3. latby ать? If (a, b)=1; then (a+b, 2) = ² atb Р P Prove that (a+b) = a +b (mod p) whee pls aprime number!