Jika f (x) = 3²×-¹ maka f-¹(9)
Matematika
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Pertanyaan
Jika f (x) = 3²×-¹ maka f-¹(9)
1 Jawaban
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1. Jawaban dillaalf
f(x) = 3²[tex] x^{-1} [/tex]
= 9/x
Misal,
[tex] f^{-1} [/tex](9) = A
maka,
f(A) = 9
9/A = 9
A = 1
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