Home
О нас
Products
Services
Регистрация
Войти
Поиск
Pandaass
@Pandaass
July 2022
1
10
Report
Найдите сумму пяти первых членов геометрической прогресии (bn), если bn=18,а знаменатель q= 3???
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms of service
You must agree before submitting.
Send
Answers & Comments
gvi03132300
Verified answer
B(n)=b(1)*q^(n-1)=b(1)*3^(n-1)=18,⇒
b(1)=18/3^(n-1)=3²*2/3^(n-1)=2*3^(3-n).
S(n)=b(1)(1-q^n)/(1-q);
S(5)=2*3^(3-n)(1-3^5)/(1-3)=2*3^(3-n)*242/2=242*3^(3-n).
0 votes
Thanks 0
More Questions From This User
See All
Pandaass
August 2022 | 0 Ответы
pomogite reshit podrobno8711f73cafa56bf43aca850ed07df790 52841
Answer
Pandaass
July 2022 | 0 Ответы
pomogite pozhajlusta nuzhny otvety zaranee spasibo
Answer
Pandaass
July 2022 | 0 Ответы
pomogite reshit 2 chast45944decbdf8bd70f6390d057e80193b 15702
Answer
Pandaass
July 2022 | 0 Ответы
ochen ochen srochno pomogite te kto realno znayut ochen nado
Answer
Pandaass
July 2022 | 0 Ответы
pozhalujsta ochen ochen ochen srochno pomogite
Answer
Pandaass
June 2022 | 0 Ответы
dopomozhit budlaskae93d756a4d4a6e68006aa36872d9bcce 17715
Answer
Pandaass
March 2022 | 0 Ответы
pomogite sdelat 2 chast srochno spishite vstavte propushennye bukvy rasstavte
Answer
Pandaass
December 2021 | 0 Ответы
opredelit moshnost dvigatelya kotoryj szhigaet 30 kg benzina za 2 chasa raboty
Answer
Pandaass
December 2021 | 0 Ответы
kg389fe6eff6116b2fa05c0c7057e8384a 23379
Answer
Pandaass
August 2021 | 0 Ответы
dopomozhit budlaskaf028780b2f9c5125c7d4584c9a3b102d 35288
Answer
рекомендуемые вопросы
rarrrrrrrr
August 2022 | 0 Ответы
o chem dolzhny pozabotitsya v pervuyu ochered vzroslye pri organizacionnom vyvoze n
danilarsentev
August 2022 | 0 Ответы
est dva stanka na kotoryh vypuskayut odinakovye zapchasti odin proizvodit a zapcha
myachina8
August 2022 | 0 Ответы
najti po grafiku otnoshenie v3v1 v otvetah napisano 9 no nuzhno reshenie
ydpmn7cn6w
August 2022 | 0 Ответы
Choose the correct preposition: 1.I am fond (out,of,from) literature. 2.where ar...
millermilena658
August 2022 | 0 Ответы
opredelite kak sozdavalas i kto sozdaval arabskoe gosudarstvo v kracii
MrZooM222
August 2022 | 0 Ответы
ch ajtmanov v rasskaze krasnoe yabloko ispolzuet metod rasskaz v rasskaze opi
timobila47
August 2022 | 0 Ответы
kakovo bylo naznachenie kazhdoj iz chastej vizantijskogo hrama pomogite pozhalujsta
ivanyyaremkiv
August 2022 | 0 Ответы
moment. 6....
pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513
sarvinozwakirjanova
August 2022 | 0 Ответы
pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631
×
Report "Найдите сумму пяти первых членов геометрической прогресии (bn), если bn=18,а зна..."
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
О нас
Политика конфиденциальности
Правила и условия
Copyright
Контакты
Helpful Social
Get monthly updates
Submit
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
B(n)=b(1)*q^(n-1)=b(1)*3^(n-1)=18,⇒b(1)=18/3^(n-1)=3²*2/3^(n-1)=2*3^(3-n).
S(n)=b(1)(1-q^n)/(1-q);
S(5)=2*3^(3-n)(1-3^5)/(1-3)=2*3^(3-n)*242/2=242*3^(3-n).