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(g o f)(x) = 9x + 2
pake cara coba" yg mendekati persamaannya
g(x) = 3x - 2
buktikan
(g o f)(x) = 3(3x + 1) -1
= 9x +3 -1
= 9x + 2
terbukti bahwa g(x) nya memenuhi
semoga membantu ... :)
(gof)(x)= 9x+2
g( fx) = 9(3x+1)+2
g (x) = 27x + 3
maaff kalau salah baru belajar kayak gitu di sekolah nyoba sendiri