Materi Baris dan Deret
Kelas IX
20,17,14,11,..
a = 20
b = -3
Un = a + (n-1)b
Un = 20 + (n-1)-3
Un = 20 - 3n + 3
Un = 23 - 3n
Mohon maaf apabila ada kesalahan
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Materi Baris dan Deret
Kelas IX
20,17,14,11,..
a = 20
b = -3
Un = a + (n-1)b
Un = 20 + (n-1)-3
Un = 20 - 3n + 3
Un = 23 - 3n
Mohon maaf apabila ada kesalahan