Q. 335.0( 1 Vote )
Mark the correct alternative in each of the following:
The inverse of the function f : R → [x ϵ R : x < 1] given by
is
A. 
B. 
C. 
D. none of these
Answer :
Given that f: R → [x ϵ R : x < 1] defined by
Put y = f(x)
⇒ y(e2x + 1)= e2x – 1
⇒ e2x (y -1) = -y -1
)
)
So, )
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