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U(1) = 4(1)-3 = 1
u(2) = 4(2)-3= 5
u(3) = 4(3)-3= 9
u(4) = 4(4)-3= 13
u(5) = 4(5)- = 17
jadi suku 1-5 yaitu 1,5, 9, 13, dan 17
U1 = 4x1 - 3 = 4 - 3 = 1
U2 = 4x2 - 3 = 8 - 3 = 5
U3 = 4x3 - 3 = 12 - 3 = 9
U4 = 4x4 - 3 = 16 - 3 = 13
U5 = 4x5 - 3 = 20 - = 17
Jadi 5 suku pertamannya yaitu 1,5,9,13, dan 17