~barisan dan Deret
4 , 7 , 10 , ... , ...
Un = a + (n - 1) b
Un = 4 + (n - 1) . 3
Un = 4 + 3n - 3
Un = 3n + 1
U₄ = 3(4) + 1
U₄ = 13
U₅₀ = 3(50) + 1
U₅₀ = 151
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~barisan dan Deret
4 , 7 , 10 , ... , ...
Un = a + (n - 1) b
Un = 4 + (n - 1) . 3
Un = 4 + 3n - 3
Un = 3n + 1
U₄ = 3(4) + 1
U₄ = 13
U₅₀ = 3(50) + 1
U₅₀ = 151