Let g:R→R be given by g(x) = 3 + 4x .Prove by induction
that, for all positive integers n,
g^n (x) = (4^n −1) + 4^n (x).
If for every positive integer k, we inteprete g^(−k) as the inverse
of the function g^k .Prove that the above formula holds alsl
for all negative integers n.
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