1+sin 60+sin^2 60+sin^3 60 +.....?
Matematika
leksonhatulusan
Pertanyaan
1+sin 60+sin^2 60+sin^3 60 +.....?
2 Jawaban
-
1. Jawaban Anonyme
Deret Geometri Tak Hingga
1 + sin 60 + sin² 60 + ...
a = 1
r = U2/U1 = sin 60
S~ = a / (1 - r)
S~ = 1/(1 - 1/2 √3)
S~ = 2/(2 - √3)
S~ = 2(2 + √3)/(2² - (√3)²)
S~ = 4 + 2√3 ✔ -
2. Jawaban Anonyme
S= a/(1-r)
=1 (1-1/2√3)
= 2 l(2-√3)
= 2(2+√3)/(2^2-(√3)^2)
= 4+2√3
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