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The inverse of $$f(x) = \frac{2x-1}{x+5}$$ may be written in the form $$f^{-1}(x)=\frac{ax+b}{cx+d}$$, where a, b, c, and d are real numbers. Find a/c.

Jul 22, 2020

$$f^{-1}(x) = \dfrac{-2x + 5}{x + 1}$$