#QuizYangTidakUmum
a(x) = x² – 5
b(x) = 2x + 8
c(x) = 9 + 4x
d(x) = x³
Maka nilai ((a°b°c°d)(x))'''''' = …………..
Quiz (+50):
Jawaban:
25920
Penjelasan dengan langkah–langkah:
(BA untuk kak tnov)
(a o b o c o d)(x)
= a(b(c(d(x))))
= a(b(c(x³)))
= a(b(9+4x³))
= a(2(9+4x³)+8))
= a(18+8x³+8)
= a(8x³+26)
= (8x³+26)²-5
= 64x⁶+416x³+676-5
= 64x⁶+416x³+671
tur. pertama= 384x⁵+1248x²
tur. ked = 1920x⁴ + 2496x
ketiga. = 7680x³+2496
keempat. = 23040x²
kelima. 46080x
keenam= 46080
Komposisi Fungsi
a(x) = x² – 5
b(x) = 2x + 8
c(x) = 9 + 4x
d(x) = x³
(a°b°c°d)(x)
= (a°b°)(9 + 4x³)
= a(2(9 + 4x³) + 8))
= a(8x³ + 26)
= (8x³ + 26)² – 5
y = (8x³ + 26)² – 5
y = 64x⁶ + 416x³ + 671
y'''''''
= 6! 64 + 0
= 46080