Check the validity of the statements given below by the method given against it 3 MAR...........

Check the validity of the statements given below by the method given against it.     (3 MARKS)

(i) p: The sum of an irrational number and a rational number is irrational (by contradiction method).

(ii) q: If n is a real number with n > 3, then n2 > 9 (by contradiction method).