Suku ke 211 dari barisan bilangan 3,8,13,18, ...adalah ...

Barder

U1 = a = 3
b = 8-3= 5

U211
= a + 210b
= 3 + 210(5)
= 3 + 1050
= 1053

Mapel : Matematika
Materi : Barisan dan Deret
Kelas : 9
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3, 8, 13, 18

Nilai a = 3
Nilai b = 8 - 3 = 5

Maka, Suku ke - 211 barisan
Un = a + (n - 1)b

U211 = 3 + (211 - 1)(5)
U211 = 3 + 210(5)
U211 = 3 + 1050
U211 = 1053