1.Relation and Function
easy

ધારો કે $S =\{1,2,3\} .$ નીચે આપેલ વિધેય $f: S \rightarrow S$ નો વ્યસ્ત મળશે કે નહિ તે નક્કી કરો અને જો $f^{-1}$ નું અસ્તિત્વ હોય તો તે શોધો. $f=\{(1,1),\,(2,2),\,(3,3)\}$

A

$f$

B

$f$

C

$f$

D

$f$

Solution

It is easy to see that $f$ is one-one and onto, so that $f$ is invertible with the inverse $f^{-1}$ of $f$ given by $f^{-1}=\{(1,1),(2,2),(3,3)\}=f$

Standard 12
Mathematics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.