Question

1Dik: f(x)=4x+2

G(x)=4

Dit gof?




4. dik= f(x)= akar dari x kuadrat-8x +12

Dit=domain fungsi




3. dik=f(X)=2x+1/x-3, x≠3

Dit= inversf(x+1)




2.dikf(x)=x-2

Gx=xpangkat3

H(x)=4x

Dit=invers(fog)oh(x)




5.dik= f(x)=x-3/2x+5, x≠ -5/2

Dit= f-1(1)




6. f(x)=x-1/5

inversG(x)=3-x/2

dit=(fog)-1(6)




7.dik= inversf(x)=2x/3-x

Dit=f(-3)

Answer 1

3) f(x)    = 2x + 1 / x-3     
Y        = 2x + 1 / x-3 
Yx -3y  = 2x + 1 
Yx – 2x = 3y + 1
 X(y-2)   = 3y +1 
X            = 3y + 1 / y-2 
F-1 (x)  = 3x + 1 / x-2
 f-1 (x+ 1)  = 3(x + 1) + 1 / (x+1) -2
 f-1 (x+ 1) = 3x + 2 / x-1