Matematika 3, 6, 12, 24,.... Hitunglah: a. Suku ke-12 b. Jumlah 10 suku pertama​

audiekingulv – April 05, 2023

3, 6, 12, 24,.... Hitunglah: a. Suku ke-12 b. Jumlah 10 suku pertama​

Jawaban:

DerGeo =

a = 3

r = 2

U12 = ar^11

U12 = 3 . 2^11

U12 = 6144

S10 = a(rⁿ - 1)/(r - 1)

S10 = 3(2^10 - 1)/(2-1)

S10 = 3(1023)

S10 = 3069

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