U1 = a = 102
Un = 297
» Mencari n
297 = 102 + (n-1)3
195 = 3n - 3
198 = 3n
66 = n
» Mencari jumlah bilangan
Sn = ½n (a + Un)
S66 = ½ 66 (102+297)
= 33 . 399
= 13.167
Jadi jawabannya adalah C
maaf bila ada kesalahan
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U1 = a = 102
Un = 297
» Mencari n
297 = 102 + (n-1)3
195 = 3n - 3
198 = 3n
66 = n
» Mencari jumlah bilangan
Sn = ½n (a + Un)
S66 = ½ 66 (102+297)
= 33 . 399
= 13.167
Jadi jawabannya adalah C
maaf bila ada kesalahan