Home
О нас
Products
Services
Регистрация
Войти
Поиск
asyaberez
@asyaberez
July 2022
1
0
Report
Решите пожалуйста. Там по-моему с введением логарифма
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
mikael2
Verified answer
№3 2ˣ⁻²(2²+2+1)=5ˣ⁻²(5²+5+1) 2ˣ⁻²/5ˣ⁻²=31/7 (0.4)ˣ⁻²=31/7
x-2=log0.4 (31/7) x=log0.4(31/7)+2
---------------------------------------
№4 2^(√x)=z z>0 x≥0
0.5*16*z²-35z+12=0
8z²-35z+12=0 D=35²-4*8*12=1225-384=841 √D=29
z1=1/16[35-29]=3/8 2^√x=3/8 √x=log2 (3/8)<0 отбрасываем
z2=1/16[35+29]=4 2^√x=2² √x=2
x=4
1 votes
Thanks 0
More Questions From This User
See All
asyaberez
July 2022 | 0 Ответы
pri gorenii magniya obrazovalos 20 g oksida magniya opredelite a massu prorea
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 "Решите пожалуйста. Там по-моему с введением логарифма..."
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
№3 2ˣ⁻²(2²+2+1)=5ˣ⁻²(5²+5+1) 2ˣ⁻²/5ˣ⁻²=31/7 (0.4)ˣ⁻²=31/7x-2=log0.4 (31/7) x=log0.4(31/7)+2
---------------------------------------
№4 2^(√x)=z z>0 x≥0
0.5*16*z²-35z+12=0
8z²-35z+12=0 D=35²-4*8*12=1225-384=841 √D=29
z1=1/16[35-29]=3/8 2^√x=3/8 √x=log2 (3/8)<0 отбрасываем
z2=1/16[35+29]=4 2^√x=2² √x=2 x=4