24 Hours in Nowhere

24 Hours in Nowhere

Matematika
Diketahui f(x) = 4x + 2 dan
g(x) = x - 5, tentukan:

a. (f°g)(x) =
b. (g°f)(x) =
c. (g°f)(3) =​


Diketahui f(x) = 4x + 2 dan
g(x) = x - 5, tentukan:

a. (f°g)(x) =
b. (g°f)(x) =
c. (g°f)(3) =​

Jawab:

a. 4x - 18

b. 4x - 3

c. 9

Penjelasan dengan langkah-langkah:

∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴

Diketahui = f(x) = 4x + 2 dan g(x) = x - 5

Ditanya =

a. (f°g)(x) =

b. (g°f)(x) =

c. (g°f)(3) =​

∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴

Jawab =

a. (fog) (x) = f(g(x))

⇒ (fog) (x) = f(x-5)

⇒ (fog) (x) = 4(x-5) +2

⇒ (fog) (x) = 4x - 20 + 2

⇒ (fog) (x) = 4x - 18

b. (gof) (x) = g(f(x))

⇒ (gof) (x) = g(4x+2)

⇒ (gof) (x) = (4x+2) - 5

⇒ (gof) (x) = 4x = 3

c, (gof) (3) = g(f3))

⇒ Masukkan (gof) (x) tadi terlebih dahulu

4x - 3 (masukan 3 ke x nya)

⇒ 4(3) - 3

⇒ 12 - 3

9

Jadikan yang

TERBAIK

yaa !!! ^^

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