(2,4,6,8, .........Un =1.829)
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a = 2
b = 4 - 2 = 2
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Rumus mencari suku ke N :
Un = a + (n - 1)b
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Un = a + (n - 1)b
1.) U1.829 = 2 + (1.829 - 1)2
U1.829 = 2 + 1.828(2)
U1.829 = 2 + 3.656
U1.829 = 3.658
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