50 баллов геометрическая прогрессия срочнооооооооооооо!!!!!!!!!!!!!!!1. Created by anutaerm. algebra-ru

50 баллов геометрическая прогрессия срочнооооооооооооо!!!!!!!!!!!!!!!1...

anutaerm @anutaerm

September 2021 1 16 Report

50 баллов геометрическая прогрессия срочнооооооооооооо!!!!!!!!!!!!!!!1

Answers & Comments

LFP

Verified answer

S_3 = b1 * (1-q^3) / (1-q)
78 = 54 * (1-q^3) / (1-q)
13/9 = (1-q)*(1+q+q^2) / (1-q)
9q^2+9q+9 = 13
9q^2 + 9q - 4 = 0
D = 81+4*9*4 = 15^2
(q)1;2 = (-9 +- 15) / 18 = (-3 +- 5) / 6
q1 = -8/6 = -4/3
q2 = 2/6 = 1/3
Ответ: -1

1 votes Thanks 0

pomogite geometriya srochno 35 ballov

Answer

anutaerm July 2022 | 0 Ответы

40 ballov algebra 10 klass pomogite proshu

Answer

anutaerm July 2022 | 0 Ответы

reshit s poyasneniem primer 45 ballov luchshij pozhalujstaaaa4114eb47c792d54fe63556ed7e9b99d6 91063

Answer

anutaerm July 2022 | 0 Ответы

40 ballov ochen proshu pomogite reshit trigonometriya3704a22afbbaf0fb387ac3fe7abdbd17 85420

Answer

anutaerm July 2022 | 0 Ответы

40 ballov ochen proshu pomogite reshit trigonometriyaec81f94169b7fa1b616db20d8df8f304 21313

Answer

Answers & Comments

Verified answer

pomogite geometriya srochno 35 ballov

40 ballov algebra 10 klass pomogite proshu

reshit s poyasneniem primer 45 ballov luchshij pozhalujstaaaa4114eb47c792d54fe63556ed7e9b99d6 91063

reshit s poyasneniem primer 45 ballov luchshij pozhalujstaaaa

48 ballov algebra 10 klass pomogite proshu

100 pnkt zadaniya pro vektory s poyasneniem

srochnoooooooo 45ballov

reshit algebra 10 klass 40 ballov

40 ballov ochen proshu pomogite reshit trigonometriya3704a22afbbaf0fb387ac3fe7abdbd17 85420

40 ballov ochen proshu pomogite reshit trigonometriyaec81f94169b7fa1b616db20d8df8f304 21313

рекомендуемые вопросы

Helpful Links

Helpful Social