Page No 19:
Question 14:
Let
be a function defined as
. The inverse of f is map g: Range
(A) 
(B) 
(C) 
(D) 
It is given that
Let y be an arbitrary element of Range f.
Then, there exists x ∈
such that 
Let us define g: Range
as
Now,
∴
Thus, g is the inverse of f i.e., f−1 = g.
Hence, the inverse of f is the map g: Range, which is given by
The correct answer is B.
