FunctionHard
Question
Let f : (4, 6) → (6,8) be a function defined by f(x) = x + 
. (where [.] denotes the greatest integer function) , then f-1 (x) is euqal to :-
. (where [.] denotes the greatest integer function) , then f-1 (x) is euqal to :-Options
A.x - 
B.- x - 2
C.x - 2
D.
Solution
∈ (2,3) ⇒ 
= 2f(x) = x + 2
y - 2 = x
f - 1(x) = x - 2
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