a Prove that if x 3 18 and ly 2 7 then ry 75 b Prove that if

Last updated: 4/12/2023

a Prove that if x 3 18 and ly 2 7 then ry 75 b Prove that if n is a natural number then either n is a multiple of 4 or n 1 is a multiple of 4 c Prove that for any positive real number x there is a natural number such that x