Diketahui:
maka:
Ditanya:
U40
Penyelesaian:
Un = a + (n - 1)b
U40 = 7 + (40 - 1)-2
U40 = 7 + (39)-2
U40 = 7 - 78
U40 = -71
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Diketahui:
maka:
Ditanya:
U40
Penyelesaian:
Un = a + (n - 1)b
U40 = 7 + (40 - 1)-2
U40 = 7 + (39)-2
U40 = 7 - 78
U40 = -71