2 years ago

F(x) = 3x + 1 and f-1 = f-1 = x-1 / 3 then f -'(7) =

1 answer:

7 0

Answer:

Step-by-step explanation:

f^-1 (7) = $\frac{x-1}{3}$ = $\frac{7-1}{3}$ = $\frac{6}{3}$ = 2

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