Question

Let g : R → R be given by g(x) = 3 + 4x. If gⁿ (x) = gog o.........o g(x), then g^–n (x) equals where g^–n (x) denotes inverse of gⁿ (x)

(A) (4ⁿ – 1) + 4ⁿ x 

(B) (x + 1) 4^–n – 1 

(C) (x + 1) 4ⁿ – 1 

(D) (4^–n – 1) x + 4ⁿ

Answer 1

Correct Option:- (B) (x + 1) 4^–n – 1

Explanation :-