Home
О нас
Products
Services
Регистрация
Войти
Поиск
AlienKay
@AlienKay
July 2022
1
8
Report
Решите неравенство:
[tex] x^{2lgx} = 10x^2[/tex]
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
KuOV
Verified answer
Прологарифмируем обе части уравнения (x>0)
lg (x ^ (2lgx) ) = lg (10x²)
2lgx · lgx = 1 + 2lgx
2lg²x - 2lgx - 1 = 0
lgx = t
2t² - 2t - 1 = 0
D = 4 + 8 = 12
t = (2 + 2√3)/4 = (1 + √3)/2 или t = (1 - √3)/2
lgx = (1 + √3)/2 lgx = (1 - √3)/2
x = 10 ^ (1 + √3)/2 x = 10 ^ (1 - √3)/2
(если нет ошибки в условии)
3 votes
Thanks 8
More Questions From This User
See All
AlienKay
August 2022 | 0 Ответы
4...
Answer
AlienKay
August 2022 | 0 Ответы
k grafiku funkcii yx23x2 v tochke s abscissoj x0 provedena kasatelnaya najd
Answer
AlienKay
August 2022 | 0 Ответы
tex]...
Answer
AlienKay
July 2022 | 0 Ответы
tex]...
Answer
AlienKay
July 2022 | 0 Ответы
tex]...
Answer
AlienKay
July 2022 | 0 Ответы
tex]...
Answer
AlienKay
July 2022 | 0 Ответы
tex na otrezke 13 varianty otvetov a 48 b 37 c50 d 56 e 46
Answer
AlienKay
July 2022 | 0 Ответы
tex]...
Answer
AlienKay
July 2022 | 0 Ответы
tex]...
Answer
AlienKay
July 2022 | 0 Ответы
uprostite vyrazhenie60cc8b247d7df790cb165e2e51d57c86 32654
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 "tex]..."
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
Прологарифмируем обе части уравнения (x>0)lg (x ^ (2lgx) ) = lg (10x²)
2lgx · lgx = 1 + 2lgx
2lg²x - 2lgx - 1 = 0
lgx = t
2t² - 2t - 1 = 0
D = 4 + 8 = 12
t = (2 + 2√3)/4 = (1 + √3)/2 или t = (1 - √3)/2
lgx = (1 + √3)/2 lgx = (1 - √3)/2
x = 10 ^ (1 + √3)/2 x = 10 ^ (1 - √3)/2
(если нет ошибки в условии)