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For the Given Function f(x)f(x) , Find f1(x)f^{-1}(x) State the Domain Of

Question 315

Multiple Choice

For the given function f(x) f(x) , find f1(x) f^{-1}(x) . State the domain of f1(x) f^{-1}(x) .
- f(x) =4x+5f(x) =\sqrt{4 x+5}


A) f1(x) =2x54,x0f^{-1}(x) =\frac{2 x-5}{4}, x \geq 0

B) f1(x) =x245,x0f^{-1}(x) =\frac{x^{2}}{4}-5, x \geq 0

C) f1(x) =(x5) 24,x0\mathrm{f}^{-1}(\mathrm{x}) =\frac{(\mathrm{x}-5) ^{2}}{4}, \mathrm{x} \geq 0

D) f1(x) =x254,x0f^{-1}(x) =\frac{x^{2}-5}{4}, x \geq 0

Correct Answer:

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