Home
О нас
Products
Services
Регистрация
Войти
Поиск
Realgun
@Realgun
August 2022
1
8
Report
Не решая уравнения, найдите значение выражения:x^2-6x+2=0
1)x1^2+x2^2
2)x1/x2+x2/x1
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
Dимасuk
Verified answer
По теореме, обратной теореме Виета:
x₁ + x₂ = 6
x₁x₂ = 2
1) x₁² + x₂² = x₁² + 2x₁x₂ + x₂² - 2x₁x₂ = (x₁ + x₂)² - 2x₁x₂ = 6² - 2·2 = 36 - 4 = 32
2) x₁/x₂ + x₂/x₁ = (x₁² + x₂²)/x₁x₂ = [(x₁ + x₂)² - 2x₁x₂]/x₁x₂ = (36 - 4)/2 = 32/2 = 16
3 votes
Thanks 4
More Questions From This User
See All
Realgun
August 2022 | 0 Ответы
najdite promezhutki znakopostoyanstva 3 y4 sqrtx162c0e7509461811d4f30609e6f271700 78762
Answer
Realgun
August 2022 | 0 Ответы
dva vneshnih ugla treugolnikane imeyushie obshuyu vershinuravny 100najdite ugly t
Answer
Realgun
August 2022 | 0 Ответы
v chem slozhnost i protivorechivost zhiznennyh putej andreya bolkonskogo i pera be
Answer
Realgun
August 2022 | 0 Ответы
1 opredelit massovuyu dolyu novogo rastvora poluchennogo pri slivanii 200 gr 15
Answer
Realgun
August 2022 | 0 Ответы
c najtivsrput
Answer
Realgun
August 2022 | 0 Ответы
v parallelogramme abcd bissektrisa ostrogo ugla a delit storonu os na otrezkibe
Answer
Realgun
July 2022 | 0 Ответы
pri kakih a chislo 2a 6 prinadlezhit promezhutku 26
Answer
Realgun
July 2022 | 0 Ответы
sostavte slozhnyj plan po etomu1druzhba s berezoj2bereza upala v reku3bereze
Answer
Realgun
July 2022 | 0 Ответы
kakie utverzhdeniya verny obrazovatelnaya tkan imeetsya tolko u molodyh rastenij
Answer
Realgun
July 2022 | 0 Ответы
begushij hokkeist spotknuvshis padaet vpered vyberite pravilnoe utverzhdenie
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 "x1..."
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
По теореме, обратной теореме Виета:x₁ + x₂ = 6
x₁x₂ = 2
1) x₁² + x₂² = x₁² + 2x₁x₂ + x₂² - 2x₁x₂ = (x₁ + x₂)² - 2x₁x₂ = 6² - 2·2 = 36 - 4 = 32
2) x₁/x₂ + x₂/x₁ = (x₁² + x₂²)/x₁x₂ = [(x₁ + x₂)² - 2x₁x₂]/x₁x₂ = (36 - 4)/2 = 32/2 = 16