S4 = 38, nilai U1+U4 = ?
Matematika
purpleburritoo
Pertanyaan
S4 = 38, nilai U1+U4 = ?
1 Jawaban
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1. Jawaban AlfandyGulo
S4 = 38
U1 = a
MaKa
Sn = n/2 (a + Un)
S4 = 4/2 (U1 + U4)
38 = 2 (U1 + U4)
38/2 = U1 + U4
19 = U1 + U4
Jadi:
U1 + U4 = 19