CUET Preparation Today
CUET
-- Mathematics - Section B1
Relations and Functions
a
b
c
d
$f:N→N$ $f(x)=x^2$
Range = {1, 4, 9, 16, 25, ....}
$f(x_1)=f(x_2)⇒x_1=x_2$ (One-One)
for $f(x)=7$ x dosen't exist (Not onto)
