AP EAMCET · Maths · Functions
If \([\cdot]\) denotes the greatest integer function and if \(f:(5,10) \rightarrow(7,12)\) is a function defined by \(f(x)=x+2\left[\frac{x}{5}\right]\), then
- A \(f^{-1}(x)=x-1\)
- B \(f^{-1}(x)=x+2\)
- C \(f^{-1}(x)=x-2\)
- D \(f^{-1}(x) \text { does not exist}\)
Answer & Solution
Correct Answer
(C) \(f^{-1}(x)=x-2\)
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