Предмет: Алгебра, автор: koshka2412

Дано: b1=
\frac{1}{64}
b2=
\frac{1}{18}
b3=
\frac{1}{6}

Найти:S6
​

Ответы

Автор ответа: asialoban
1

b2 ＝ b1 * q

q ＝ b2/b1 ＝ 1/18 : 1/64 ＝ 64/18 ＝ 32/9

Sn ＝ (b1(q^n - 1))/(q - 1)

S6 ＝ (1/64((32/9)^6 - 1))/(32/9 - 1) ≈ 12

koshka2412: велике спасибі:3
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