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Fungsi Komposisi

Fungsi Komposisi

Why_Fi?!
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Fungsi Komposisi

Why_Fi?!

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# 1

Jika ada fungsi f(x)=x2+27​f\left(x\right)=x^2+27​dang(x)=1x+2​g\left(x\right)=\frac{1}{x+2}​. Maka nilai fungsi (g o f)(x) adalah

1x3+29\frac{1}{x^3+29}
x3+29x^3+29
1x2+29\frac{1}{x^2+29}
x2+29x^2+29
# 2

Apakah f(x)=3x1​f\left(x\right)=3x-1​dan g(x)=2x23​g\left(x\right)=2x^2-3​ memiliki nilai (f o g)(x) =6x34​=6x^3-4​?

# 3

Jika f(x)=2x+1​f\left(x\right)=2x+1​ dan g(x)=x23​g\left(x\right)=x^2-3​, tentukan bentuk aljabar dari (g o f)(x).

2x2+12x^2+1
x2+2x2x^2+2x-2
x23x^2-3
4x2+4x24x^2+4x-2
# 4

Jika f(x)=3x​f\left(x\right)=3x​ dan g(x)=x3​g\left(x\right)=\frac{x}{3}​, apakah benar bahwa (f o g)(x) = x?

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