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chacha4
@chacha4
July 2022
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помогите с 11, 12 вопросом) за ответ подарю 8 баллов))
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gfirsov0071
11) 6 - 3х > 0 <=> 3х < 6 <=> х < 2
Ответ: Е
12) q = b5/b4 = 320/160 = 2
b1 = b4/q³ = 160/8 = 20
Sn = b1(1 - qⁿ)/(1 - q) = 20(1 - 2^5)/(1 - 2) = 20×31 = 620
Ответ: Е
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chacha4
спасибо ;)
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Answers & Comments
Ответ: Е
12) q = b5/b4 = 320/160 = 2
b1 = b4/q³ = 160/8 = 20
Sn = b1(1 - qⁿ)/(1 - q) = 20(1 - 2^5)/(1 - 2) = 20×31 = 620
Ответ: Е