Test Academy | Let f: R – {3/5} → R be defined by f(x) = 3x+2/5x−3 then f⁻¹(x) = f(x), f⁻¹(x) = -f(x), (f o f)x = -x, f⁻¹(x) = 1/19 * f(x)

Question

Let f: R – {3/5} → R be defined by f(x) = 3x+2/5x−3 then

Options :

f⁻¹(x) = f(x)
f⁻¹(x) = -f(x)
(f o f)x = -x
f⁻¹(x) = 1/19 * f(x)

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