Diketahui fungsi f(x) 6x-3, g(x)= 5x+4 ,dan f o g ( a)=81,makan nilai a
Jawaban Terkonfirmasi
Komposisi Fungsi
fog(a) = 81
f { g(a) } = 81
f(5a +4) = 81
6(5a + 4) – 3 = 81
30 a + 24 – 3 = 81
30 a + 21 = 81
30 a = 81- 21 = 60
a = 2
Diketahui fungsi f(x) 6x-3, g(x)= 5x+4 ,dan f o g ( a)=81,makan nilai a
Komposisi Fungsi
fog(a) = 81
f { g(a) } = 81
f(5a +4) = 81
6(5a + 4) – 3 = 81
30 a + 24 – 3 = 81
30 a + 21 = 81
30 a = 81- 21 = 60
a = 2