1.

Let f : N rarr N be a function defined as f(x) = 4x^(2) + 12x + 15 is invertible (where S is range of f). Find the inverse of f and hence find f^(-1)(31).

Answer»


ANSWER :`f^(-1) : S RARR N`, such that `f^(-1)(x) = (sqrt(x-6) - 3)/(2); f^(-1)(31) = 1`


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