Chapter 1. Relation Function Maths Chapter 1 Relation Function , XII Maths | Page 11

Show that f , g and gof are invertible . Find out f – 1 , g – 1 and ( gof ) – 1 and show that ( gof ) – 1 = f – 1 o g – 1 .

Solution : All F , G & gof are 1:1 & onto , so they are all invertible .