jika f(x) = x2-1 dan g(x)= x2-x-2,maka (fog)(-1)=
Matematika
anggi1145
Pertanyaan
jika f(x) = x2-1 dan g(x)= x2-x-2,maka (fog)(-1)=
1 Jawaban
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1. Jawaban oktanaruhma
(fog) (x) =f(g(x) =(x^2-x-2)^2 - 1
= ((-1)^2-(-1)-2)^2 - 1
=(1+1-2)^2 - 1
= - 1