Deret bilangan 100+50+25+... Suku ke 50
Matematika
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Pertanyaan
Deret bilangan 100+50+25+...
Suku ke 50
Suku ke 50
1 Jawaban
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1. Jawaban Sakti2017
U1 = a = 100
r = u2/u1 = 50/100 = 1/2.
Un = a.r ⁿ⁻¹
U50 = 100.(1/2) ⁵⁰⁻¹
= 100.(1/2) ⁵⁰⁻¹
= 50 ⁴⁹ .