Question

if f : Nto N is defined as f (x) = x.x the pre images of 1 and 2 are ------' and------

Answer 1

Pre image of 1 = 1× 1 = 1

= 1

Pre image of 2 = 2× 2 = 4

= 4

Answer 2

1,√2 is the answer pa ... IAM also tenth sslc