Question

F(x) = 2x dan g(x) = x +2
fungsi invers F-1 dan g - 1 ?

bantu donk yang bisa jawab sepi banget

Answer 1

F(x) = 2x
f^-1(2x) = x
misal a = 2x 
x = 1/2 a
f^-1(a) = 1/2 a
f^-1(x) = 1/2 x

g(x) = x+2
g^-1(x+2) = x
misal a = x+2
x = a-2
g^-1(a) = a-2
g^-1(x) = x - 2