Matematika Quizz!!!Latihan Soal;Di Ketahui : f(x)=x²-4 dan g(x)=-4x+1Di Tanya :1.(f ° g)(x)2.(g ° f)(x)3.(f ° f)(x)4.(g ° g)(x)Tolong Di Bantu KakNote;#Pake Cara oke#Jangan Ngasal​​​​​

kirkstromanulv – April 01, 2023

Quizz!!!

Latihan Soal;

Di Ketahui : f(x)=x²-4 dan g(x)=-4x+1

Di Tanya :
1.(f ° g)(x)
2.(g ° f)(x)
3.(f ° f)(x)
4.(g ° g)(x)

Tolong Di Bantu Kak

Note;

#Pake Cara oke
#Jangan Ngasal​​​​​

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

= f( -4x + 1 )

= ( -4x + 1 )² - 4

= 16x² - 8x + 1 - 4

= 16x² - 8x - 3

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

= g( x² - 4 )

= -4( x² - 4 ) + 1

= -4x² + 16 + 1

= -4x² + 17

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

= f( x² - 4 )

= ( x² - 4 )² - 4

= x⁴ - 8x² + 16 - 4

= x⁴ - 8x² + 12

4. ( g o g )(x) = g[ g(x) ]

= g( -4x + 1 )

= -4( -4x + 1 ) + 1

= 16x - 4 + 1

= 16x - 3

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