f(x) = 3x+2/x-5, invers fungsi f(x) = f-1(x). Nilai f-1(4) =
Matematika
Corneldia
Pertanyaan
f(x) = 3x+2/x-5, invers fungsi f(x) = f-1(x). Nilai f-1(4) =
2 Jawaban
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1. Jawaban keruasriki
f(x) = 3x+2 / x-5
f-1(x) = 5x+2 / x - 3
f-1(4) = 5×4 + 2 / 4 -3 = 20+2 / 1 = 22/1 = 22
smga mmbantu -
2. Jawaban DB45
Fungsi Invers
f(x)= (3x+2)/(x-5)
f⁻¹ { (3x+2)/(x- 5)} = x
f⁻¹ (4) = ...
(3x +2)/(x-5)= 4
4(x-5) = 3x +2
4x - 3x = 2 + 20
x = 22