Question

TOLONG DIJAWAB YA TEMAN TEMAN
BESOK MAU DI KUMPUL
PLISSSSSSSSSSS

Answer 1

Penjelasan dengan langkah-langkah:

FUNGSI INVERS

g(x) = 2x + 3

(g o f)(x) = 2x + 5

2f(x) + 3 = 2x + 5

2f(x) = 2x + 5 – 3

f(x) = 2x + 2

2

f(x) = x + 1

→ f-¹(x) = x – 1 ✔

Answer 2

3. ( f o g )(x) = f[ g(x) ]

2x + 5 = f( 2x + 3 )

Misal : 2x + 3 = R

2x = R - 3

R - 3 + 5 = f(R)

R + 2 = f(R)

f(x) = x + 2

f(x) = y

x + 2 = y

x = y - 2

f⁻¹(x) = x - 2