jika f (x) = x+2, g(x) = x²-1, dan (fog) (x) = 5, maka nilai x adalah ?
Jawaban:
x1 = 2
x2 = -2
Penjelasan dengan langkah-langkah:
(fog)(x) = 5
(x² - 1) + 2 = 5
x² - 1 + 2 = 5
x² + 1 = 5
x² = 5 - 1
x² = 4
x = ±2
[answer.2.content]100 First Words for Little Geniuses (2)
100 First Words for Little Geniuses (2)
Jawaban:
x1 = 2
x2 = -2
Penjelasan dengan langkah-langkah:
(fog)(x) = 5
(x² - 1) + 2 = 5
x² - 1 + 2 = 5
x² + 1 = 5
x² = 5 - 1
x² = 4
x = ±2
[answer.2.content]