Diketahui f(x) = 4x-2, g(x) = 3x+7 dan (fog)(a)=2. Nilai a
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Pertanyaan
Diketahui f(x) = 4x-2, g(x) = 3x+7 dan (fog)(a)=2. Nilai a
1 Jawaban
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1. Jawaban rivaldiarya24
(fog)(a) = f (g(a))
2 = f( 3a+7)
2 = 4(3a+7) -2
2 = 12a + 28 -2
2 = 12a + 26
-24 = 12a
a = -2
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