Jawab:
sesuai penjelasan
Penjelasan dengan langkah-langkah:
a) (f o f )(x) = f (fx)
= f (5-x²)
= 5 - (fx)²
= 5 - (5-x²) ²
= 5 - (25 - 10x² + x⁴)
= -x⁴ + 10x² - 20
b) (f o g) (x) = f ( gx)
= f (2x+2)
= 5 - (gx)²
= 5 - (2x+2)²
= 5 - (4x² + 8x + 4)
= -4x² - 8x + 1
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Jawab:
sesuai penjelasan
Penjelasan dengan langkah-langkah:
a) (f o f )(x) = f (fx)
= f (5-x²)
= 5 - (fx)²
= 5 - (5-x²) ²
= 5 - (25 - 10x² + x⁴)
= -x⁴ + 10x² - 20
b) (f o g) (x) = f ( gx)
= f (2x+2)
= 5 - (gx)²
= 5 - (2x+2)²
= 5 - (4x² + 8x + 4)
= -4x² - 8x + 1