" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
diketahui : f ( x ) = ×^2 + 3× - 5 dan ( g of ) (×) = ×^2 + 3×-11
tentukan : g (x)
Jawaban :
(gof)(x) = x² + 3x - 11
g(f(x)) = x² + 3x - 11
g(x² + 3x - 5) = x² + 3x - 11
= 1(x² + 3x - 5) - 6
g(x) = 1x - 6
Jadi, g(x) = x - 6
NB :
Uji Kebenaran Jawaban dapat kita uji dengan :
(gof)(x) = g(f(x))
= g(x² + 3x - 5)
= (x² + 3x - 5) - 6
= x² + 3x - 11 (Benar)