" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Mata Pelajaran : MatematikaMateri : -
Hai, jawaban nomor 1 dan 2 sudah saya koreksi ya. Jawabannya sudah benar. Jika masih ada yg kurang dipahami bisa ditanyakan lagi.
Terima kasih
Verified answer
1][f(x) = x² - 25
g(x) = x + 5
•
(f + g)(x)
= f(x) + g(x)
= x² - 25 + x + 5
= x² + x - 20
(f - g)(3)
= 3² + 3 - 20
= -8
••
(f - g)(x)
= f(x) - g(x)
= x² - x - 30
(f - g)(2)
= 2² - 2 - 30
= -28
(f . g)(x)
= (x² - 25)(x + 5)
(f . g)(12)
= (12² - 25)(12 + 5)
= 119 × 17
•••
(f/g)(x)
= (x² - 25)/(x + 5)
= (x - 5)(x + 5) / (x + 5)
= x - 5
2][
f(x) = x + 2
g(x) = x² - 4
(f + g)(x) = x² + x - 2
(f/g)(x)
= (x + 2)/(x - 2)(x + 2)
= 1 / (x - 2)