NCERT Solutions for Class 12th: Ch 1 Relations and Functions Exercise 1.2 Math
Page No: 10Exercise 1.2
1. Show that the function f : R∗ → R∗ defined by f(x) = 1/x is one-one and onto, where R∗ is the set of all non-zero real numbers. Is the result true, if the domain R∗ is replaced by N with co-domain being same as R∗?
Answer
