a = 4
b = 10 - 4 = 6, 16 - 10 = 6, 6 konstan.
Un = a + (n - 1)b
U20 = 4 + (20 - 1)6
U20 = 4 + 114
U20 = 118.
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Verified answer
a = 4
b = 10 - 4 = 6, 16 - 10 = 6, 6 konstan.
Un = a + (n - 1)b
U20 = 4 + (20 - 1)6
U20 = 4 + 114
U20 = 118.