Question

f(x) = $\frac{2x+1}{x-2}$ , maka nilai f⁻¹(3)= ... ?

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Answer 1

Answer :- 7

Step-by-step explanation :-

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

y = $\dfrac{2x+1}{x-2}$

y(x - 2) = 2x + 1

xy - 2y = 2x + 1

xy - 2x = 2y + 1

x(y - 2) = 2y + 1

x = $\dfrac{2y+1}{y-2}$

f⁻¹ (x) = $\dfrac{2x+1}{x-2}$

f⁻¹(3) → $\dfrac{2(3)+1}{3-2}$ → $\dfrac{6+1}{1}$ → 7

Answer 2

Answer:

this is your answer

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