" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= (f0f0(f(-5))
f(-5) = - x - 2 ( karena x = -5 dan lebih kecil dari 0)
= -(-5) -2
= 3
= (f0f)(3)
= f0(f(3))
f(3) = x + 2 (lebih besar dari 0 )
= 3 + 2
= 5
= f (5)
f(5) = x + 2
= 5+2
= 7
Maka hasilnya 7
--------------------------------------------------------------------
Nomor 13
g(x) = x+5
f(g(x)) = x^2 - 6
f(x+5) = x^2 - 6
Maka f(x) = (x-5)^2 -6
= x^2 -10x +25 -6
= x^2 - 10x +19
F(x-1) = (x-1)^2 - 10(x-1) +19
= x^2 - 2x + 1 - 10x +10 + 19
= x^2 -12x +30 (D)