tolong jawab dong buat besok:)
Jawaban:
c. 15
Penjelasan dengan langkah-langkah:
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Diketahui:
- [tex]\displaystyle \rm U_n = \frac{1}{2} n(n + 1)[/tex]
Ditanya:
- U5 = ...?
Jawab:
[tex]\begin{aligned} \sf U_n & = \sf \frac{1}{2} n (n + 1) \\ \sf U_5 & = \sf \frac{1}{2} \times 5 \times (5 + 1) \\ & = \sf \frac{1}{\cancel{2}} \times 5 \times \cancel{6} \\ & = \sf 5 \times 3 \\ & = 15\end{aligned}[/tex]
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Jawaban:
c. 15
Penjelasan dengan langkah-langkah:
Un = 1/2n(n+1)
U5 = 1/2.5(5+1)
= 1/2.5.6
= 1/2.30
= 15
[answer.2.content]
