pliss dijawab tentang aritmatika...
26, 24, 22
Penjelasan dengan langkah-langkah:
Un = a + (n - 1)b
U7 = a + 6b = 14
U13 = a + 12b = 2
------------------ -
-6b = 12
b = 12/(-6) = -2
- U1 = a
a + 6b = 14
a + 6 x (-2) = 14
a - 12 = 14
a = 14 + 12 = 26
- U2 = a + b
= 26 + (-2)
= 24
- U3 = a + 2b
= 26 + 2 x (-2)
= 26 + (-4)
= 22
[answer.2.content]
