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Verified answer
A = 3b = 5-3 = 2
U29 = a+(n-1)b
U29 = 3+(29-1)2
U29 = 3+(28)2
U29 = 3+56
U29 = 59
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Matematika
Bab 6 - Barisan dan Deret Bilangan
diketahui :
barisan aritmatika → 3,5,7,...
a = 3
step 1 : menentukan beda
b = u2 - u1
b = 5 - 3
b = 2
step 2 : menentukan suku ke 29
un = a + (n - 1)b
u29 = 3 + (29 - 1)2
u29 = 3 + (28)2
u29 = 3 + 56
u29 = 59