F(x)=x²+x-1 g(x)=2x+1 Tentukan= a. (fog) (x) b. (gof) (x)
Matematika
Rahmifitri6273
Pertanyaan
F(x)=x²+x-1
g(x)=2x+1
Tentukan= a. (fog) (x)
b. (gof) (x)
g(x)=2x+1
Tentukan= a. (fog) (x)
b. (gof) (x)
1 Jawaban
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1. Jawaban inasukma2
A. (fog) (x) = f (g (x))
= (2x+1) ^2+ (2x+1)-1
=4x^2+4x+1
B. (gof) (x) =g (f (x))
=2 ( x^2+x-1) +1
=2x2+2x-2+1
=2x2+2x-1