Penjelasan dengan langkah-langkah:
fungsi
f(x) = x²-4x+2
g(x) = x-2
g o f(2) = ......
.
g o f(x) => subtitusi fungsi f(x) kedalam x pada fungsi g(x)
g o f(2) = g(f(2)
g(f(2) = (x²-4x+2)-2
g(f(2) = (2²-4(2)+2)-2
g(f(2) = 4-8+0
g(f(2) = -4
f(x)=x²-4x+2
g(x)=x-2
_____
(g o f)(x) = g(f(x)) = g( x² - 4x + 2 )
g(f(x))=x²-4x+2-2
g(f(x))=x²-4x
g(f(2))=2²-4(2)
g(f(2))=4-8
g(f(2))=-4
Semoga bermanfaat
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Penjelasan dengan langkah-langkah:
fungsi
f(x) = x²-4x+2
g(x) = x-2
g o f(2) = ......
.
g o f(x) => subtitusi fungsi f(x) kedalam x pada fungsi g(x)
g o f(2) = g(f(2)
g(f(2) = (x²-4x+2)-2
g(f(2) = (2²-4(2)+2)-2
g(f(2) = 4-8+0
g(f(2) = -4
Jawaban:
f(x)=x²-4x+2
g(x)=x-2
_____
(g o f)(x) = g(f(x)) = g( x² - 4x + 2 )
g(f(x))=x²-4x+2-2
g(f(x))=x²-4x
g(f(2))=2²-4(2)
g(f(2))=4-8
g(f(2))=-4
Semoga bermanfaat