Diketahui fungsi g : R -> R dirumuskan g(x) = 6-x² , jika (g ° f)(x)=4x²-22x+18, maka nilai f(2)...

(g ° f)(x)=4x²-22x+18
6 - (f(x))² = 4x²-22x+18
-f(x))² = 4x²-22x+18-6
-f(x)) ² = 4x²-22x+12
f(x)²= -4x²+22x-12
(f(2))² = -4(2)²+22(2)-12
= -16+44-12
= -28+44
= 16
(f(2))² = 16
f(2)= √16
= 4
jadi hasilnya 4