найдите сумму первых пяти членов геометрической прогрессии √3, -1, 1/√3. Created by ponys7000p4uupj. algebra-ru

√3...

ponys7000p4uupj @ponys7000p4uupj

July 2022 1 11 Report

найдите сумму первых пяти членов геометрической прогрессии √3, -1, 1/√3

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LOLSHAN1iNSANE

q = b₂/b₁ = -1/√3

$S_5=\dfrac{b_1(1-q^5)}{1-q}=-\dfrac{1+\dfrac{1}{\sqrt{3^5}}}{\sqrt{3}\left(1+\dfrac{1}{\sqrt{3}}\right)}=-\dfrac{\sqrt{3^5}+1}{\sqrt{3^5}\left(\sqrt{3}+1\right)}=-\dfrac{9\sqrt{3}+1}{27+9\sqrt{3}}$

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7811f87a6af8e6aa9a47820fc71f6e71

uprosti vyrazhenie 252

dlya progressii privedennoj v zadanii 4 najdite summu vseh ee otricatelnyh chleno

otmet priznak protekaniya reakcii mezhdu uksusom i pitevoj sodoj 1otstaivanie

pacany pomogite s uravneniem

detskaya ploshadka imeet formu pryamougolnika ploshad kotorogo ravna 70m2 odna e

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