Prove that the function f-0- - R given by fx-9x2-6x-5 is not invertible-

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Definition of Function

Prove that th...

Question

Prove that the function $f : [0, \propto) \to R$ given by $f (x) = 9 x^{2} + 6 x - 5$ is not invertible.

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f : [0, \infty) \to R

f (x) = 9 x^{2} + 6 x - 5

f^{- 1} .

f [0, \infty) \to R

f (x) = 9 x^{2} + 6 x - 5

f^{'}

f : [0, \infty) \to R

f (x) = 9 x^{2} + 6 x - 5

f

f : R^{+} \in [- 5, \infty)

f (x) = 9 x^{2} + 6 x - 5

f

f^{- 1} (y) = (\frac{(\sqrt{y + 6}) - 1}{3})

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