DEreT Ukur (GeometRI)sisipan
sisipkan empat bilangan diantara 3 dan 729 hingga terjadi sebuah deret ukur,sisipan = k = 4a = 3un = 729
[tex]\sf r = \sqrt[k+1]{\frac{U_n}{a}}[/tex]
[tex]\sf r = \sqrt[4+1]{\frac{729}{3}}[/tex]
[tex]\sf r = \sqrt[5]{243} = 3[/tex]
a. suku ke 3 = U3u3 = a r²u3 = 3. (3²)u3 = 27
b. jumlah tiga suku pertama == 3 + 9 + 27= 39
R = K + 1√N/A
= 4 + 1 √729/3
= ⁵√243/1
= ⁵√243
= ⁵√(3(3(3(3(3)
= ⁵√3⁵
= 3
MAKA :
A) A(R²)
= 3(3²)
= 3(3(3)
= 3(9)
= 27
B) TOTAL SUKU PERTAMA :
= 3 + 9 + 27
= 3 + 36
= 39
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Verified answer
DEreT Ukur (GeometRI)
sisipan
sisipkan empat bilangan diantara 3 dan 729 hingga terjadi sebuah deret ukur,
sisipan = k = 4
a = 3
un = 729
[tex]\sf r = \sqrt[k+1]{\frac{U_n}{a}}[/tex]
[tex]\sf r = \sqrt[4+1]{\frac{729}{3}}[/tex]
[tex]\sf r = \sqrt[5]{243} = 3[/tex]
a. suku ke 3 = U3
u3 = a r²
u3 = 3. (3²)
u3 = 27
b. jumlah tiga suku pertama =
= 3 + 9 + 27
= 39
R = K + 1√N/A
= 4 + 1 √729/3
= ⁵√243/1
= ⁵√243
= ⁵√(3(3(3(3(3)
= ⁵√3⁵
= 3
MAKA :
A) A(R²)
= 3(3²)
= 3(3(3)
= 3(9)
= 27
B) TOTAL SUKU PERTAMA :
= 3 + 9 + 27
= 3 + 36
= 39