f(x)= x-3 dan g(x)=x² + 2x, (gof)(2) =
Matematika
ridha117
Pertanyaan
f(x)= x-3 dan g(x)=x² + 2x, (gof)(2) =
1 Jawaban
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1. Jawaban inasukma2
(gof) (x) =g (f (x))
= (x-3) ^2+2x
=x2-6x+9 +2x
=x2-4x+9
(gof) (2) =g (f (2))
= (2) ^2-4 (2) +9
=5