Question

Tolong dijawab pake cara yaa
Invers dari fungsi komposisi

Answer 1

A.f^-1 (x) = -x/(x-1)
b. g^-1 (x) = x+1
c. (fog)^-1 (x) = -(x+1)/(x+1-1) = (-x-1)/x
(fog)^-1 (-2) = (-2-1)/2 = -3/2
d. (gof)^-1 (x) = (-x/(x-1))+1 = (-x+x-1)/x-1 = -1/(x-1)
(gof)^-1 (1/4) = -1/(1/4-1) = -1/(-3/4) = -1(-4/3) = 4/3