Rationalised 2023-24
 18
MATHEMATICS
vMathematics, in general, is fundamentally the science of
self-evident things — FELIX KLEIN v
2 1  Introduction
In Chapter 1, we have studied that the inverse of a function
f, denoted by f –1, exists if f is one-one and onto There are
many functions which are not one-one, onto or both and
hence we can not talk of their inverses