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2,5,8,11,14
a = 2
b = U2 - U1 = 5 - 2 = 3
Un = a + (n-1)b
U50 = 2 + (50-1)3
U50 = 2 + 49.3
U50 = 2 + 147
U50 = 149
Mohon maaf apabila ada kesalahan