My answer to his question at the end of the essay would be "0, π and 2π". Strangely, this triple is the only one that looks nice to me, even though all of "3 an

My answer to his question at the end of the essay would be "0, π and 2π". Strangely, this triple is the only one that looks nice to me, even though all of "3 and 3", "0 and 6" and "2 and 4" as well as coming up with a pair with long decimals looks OK to me for the original question.