Diketahui f(x) = 3x-1 dan g(x) = 2x+5 Tentukan :
a. (fog)(x)
b.(gof)(x)
c.(fog)(5)
a. (fog)(x)
b.(gof)(x)
c.(fog)(5)
More Questions From This User See All
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Penyelesaian
a. (fog)(x) = f(g(x))
= f(2x+5)
= 3(2x+5)-1
= 6x+14-1
= 6x+13
b. (gof)(x) = g(f(x))
= g(3x-1)
= 2(3x-1)+5
= 6x-2+5
= 6x+3
c. (fog)(5) = 6(5)+13
= 30+13
= 43