Jika f'(x)=3xpangkat 2 -4x+2.untuk x=2 fungsi F bernilai 6.fungsi f (x) adalah…
Penyelesaian:
f'(x) = 3x^2 – 4x + 2
∫ (3x^2 – 4x + 2) dx
= (3/3) x^3 – (4/2) x^2 + 2x + C
= x^3 – 2x^2 + 2x + C
f(2) = 6
x^3 – 2x^2 + 2x + C = 6
8 – 8 + 4 + C = 6
4 + C = 6
C = 2
maka f(x) = x^3 – 2x^2 + 2x + 2
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Detil Jawaban
Kelas: 11
Mapel: Matematika
Bab: Integral Tak Tentu
Kode: 11.2.10
Kata Kunci: integral, rumus f (x)