Carilan suku ke-n dari tiap barisan berikut
a.2,4,6,8
b. 69,11,13,15
a.2,4,6,8
b. 69,11,13,15
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a) b = U2 - U1
b= 4-2
b = 2
b) maksudnya 9?
b = U2 - U1
b = 11-9
b= 2
Rumus suku ke-n / Un
Un = U1 + (n-1)b
Silahkan cari Un sendiri, gk ditulis di pertanyaan