dik f(x)=3x+1 & (fog)(x) = 9x²+3x+1. tentukan rumus fungsi f (x)
Matematika
ila1902
Pertanyaan
dik f(x)=3x+1 & (fog)(x) = 9x²+3x+1. tentukan rumus fungsi f (x)
2 Jawaban
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1. Jawaban dnnyz07
fog(x) = 9x² + 3x + 1
f(g(x)) = 9x² + 3x + 1
3g(x) + 1 = 9x² + 3x + 1
3g(x) = 9x² + 3x
g(x) = 3x² + x -
2. Jawaban Ashiela
f(x) = 3x + 1
(f•g)(x) = 9x² + 3x + 1
f(g(x)) = 9x² + 3x + 1
3(g(x)) + 1 = 9x² + 3x + 1
3(g(x)) = 9x² + 3x
g(x) = 3x² + x