diket: f(x)=-2x-5, g(x)=x/x+1, h(x)=x² dit: a. F¹(x) b.(FoG)(x) c.(FoG)1 (x) d.(FoGoH) (x)

diket: f(x)=2x+1
g(x)=x/x+1,
h(x)=x²
dit:
a. F¹(x)
y = 2x+1
2x = y-1
x= y-1 /2
f-¹(x) = x-1/ 2

b.(FoG)(x)
2(g(x))+1
2(x / x+1)+1
2x / x+1 + 1
2x+(x+1) / x+1
3x+1 / x+1


c.(FoG)1 (x)
y = 3x+1 / x+1
y(x+1)=3x+1
yx+y=3x+1
yx-3x=-y+1
x(y-3)=-y+1
x=-y+1/ y-3
(fog)-¹(x) = -x+1 / x-3

d.(FoGoH) (x)
(fog)oh) (x)
3(h(x)) +1 / h(x) +1
3x²+1/ x²+1