un=3n+2 tentukan 5 suku pertama

[tex]un = 3n + 2 \\ u1 = 3(1) + 2 \\ u1 = 5 \\ \\ u2 = 3(2) + 2 \\ u2 = 8 \\ \\ u3 = 3(3) + 2 \\ u3 = 11 \\ \\ u4 = 3(4) + 2 \\ u4 = 14 \\ \\ u5 = 3(5) + 2 \\ u5 = 17[/tex]