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Jawaban:
63
Penjelasan dengan langkah-langkah:
(f og) = f (g(x))
= x^2+2x substitusi x menjadi g (x ) = x-1, maka :
= (x-1)^2 + 2 ( x-1 )
= x^2-x-x+1+ 2x-2
= x^2-2x+2x-1
= x^2-1
jadi (fog ) (8) = X^2-1
= 8^2-1 = 64-1 = 63
maaf kalau salah ya
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................................
Jawaban:
63
Penjelasan dengan langkah-langkah:
(f og) = f (g(x))
= x^2+2x substitusi x menjadi g (x ) = x-1, maka :
= (x-1)^2 + 2 ( x-1 )
= x^2-x-x+1+ 2x-2
= x^2-2x+2x-1
= x^2-1
jadi (fog ) (8) = X^2-1
= 8^2-1 = 64-1 = 63
maaf kalau salah ya