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CUET
-- Mathematics - Section B1
Relations and Functions
a
b
c
d
$f:N→R$, $f(x)=x^2$
$x∈N=\{1,2,3,4.....\}
so $f(x)∈\{1,2^2,3^2,4^2,5^2\}$
$⇒f(x)∈\{1,4,9,16,25\}$