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Matematika
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Pertanyaan
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1 Jawaban
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1. Jawaban ahreumlim
f(x) = (3x - 2) / (2x + 1)
y = (3x - 2) / (2x + 1)
y(2x + 1) = 3x - 2
2xy + y = 3x - 2
2xy - 3x = -y - 2
x(2y - 3) = -y - 2
x = (-y - 2) / (2y - 3)
f⁻¹(x) = (-x - 2) / (2x - 3)
f⁻¹(1) = (-1 - 2) / (2 - 3)
= -3/-1
= 3