Diketahui Fungsi f(x)=6x^2+3x+4 g(x)=9x-5 tentukan! a). (fog)(x)= b). (gof)(x)= c). (fog)^-1(x)=
Matematika
MochIrfan2527
Pertanyaan
Diketahui Fungsi
f(x)=6x^2+3x+4
g(x)=9x-5 tentukan!
a). (fog)(x)=
b). (gof)(x)=
c). (fog)^-1(x)=
f(x)=6x^2+3x+4
g(x)=9x-5 tentukan!
a). (fog)(x)=
b). (gof)(x)=
c). (fog)^-1(x)=
1 Jawaban
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1. Jawaban rika1233
A. Fog(x) =F(g(x))
=F(9x-5)
=6(9x-5)²+3(9x-5) +4
=6(9x-5) (9x-5) +27x-15+4
=6(81x²-45x-45x+25) +27x-11
=6(81x²-90x+25) +27x-11
=486x²-540x+150+27x-11
=486x²-513x+139