Matematika Tolong bantu jawab kak, please... ​

miltonwindlerulv – April 04, 2023

Tolong bantu jawab kak, please... ​

1, 3, 6,...

Pola bilangan segitiga

[tex]un = \frac{1}{2} n(n + 1) \\ \\ u5 = \frac{1}{2}.5(5 + 1) \\ \\ u5 = \frac{5}{2} (6) \\ u5 = 15 \: (a)[/tex]

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