f(x) = x²+x
g(x) = 2(x+3)
carilah masing" nilai:
D.(fog)(1)
g(x) = 2(x+3)
carilah masing" nilai:
D.(fog)(1)
Penjelasan dengan langkah-langkah:
Fungsi Komposisi
f(x) = x² + x
g(x) = 2 (x + 3) → g(x) = 2x + 6
Maka:
= (f o g)(x)
= f { g(x) }
= (2x + 6)² + (2x + 6)
= 4x² + 24x + 36 + 2x + 6
= 4x² + 24x + 2x + 36 + 6
= 4x² + 26x + 42
Menentukan nilai (f o g)(1)
= (f o g)(1)
= 4x² + 26x + 42
= 4(1)² + 26(1) + 42
= 4 + 26 + 42
= 30 + 42
= 72
semoga membantu
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