diketahui f(x)=5x-3 jika f^-1(a)=2 maka nilai a+5=...?
Matematika
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Pertanyaan
diketahui f(x)=5x-3 jika f^-1(a)=2 maka nilai a+5=...?
1 Jawaban
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1. Jawaban Anonyme
f(x) = 5x - 3
f^-1 (a) = 2
f(2) = a
5.2 - 3 = a
a = 10 - 3
a = 7
a + 5 = 12 ✔