Question

prepare a song based on properties of rational and irrational numbers on your own

Answer 1

First one is 2√2, just try to chant in old 19's and here 2 is on the both sides as, 121, third one is 12.99999...tending to be 13 and apply your logic you'll get a song and one more i have, 13, 13,13, 13...it's from Himesh hits.