Home
О нас
Products
Services
Регистрация
Войти
Поиск
2000914
@2000914
August 2022
1
12
Report
Комплексные числа
Решите уравнение:
а)z^2+z+2=0
б) z^2-(3-2i)z+5-5i=0
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
ShirokovP
Verified answer
Z^2 + z + 2 = 0
D = 1 - 8 = - 7
z1 = ( - 1 + i √7)/2
z2 = ( - 1 - i √7)/2
z^2 - (3 - 2i)z + 5 - 5i = 0
D = (3 - 2i)^2 - 4*(5 - 5i) = 8i - 15
z1 = (3 - 2i + √(8i - 15))/2 = (3 - 2i + 1 + 4i)/2 = 2 + i
z2 = (3 - 2i - √(8i - 15))/2 = (3 - 2i - 1 - 4i)/2 = 1 - 3i
√(8i - 15) = ± (1 + 4i)
a = ± 1
b = ± 4
10 votes
Thanks 11
2000914
Найдите значение параметра а, при котром уравнение z^2-(3-2i)z+a(1-i)=0 имеет корень z1=2+i
2000914
F nfrjt evttim htifnm&
2000914
А такое умеешь решать?
More Questions From This User
See All
2000914
August 2022 | 0 Ответы
v oblasti 6 gorodov mezhdu lyubymi dvumya iz nih imeetsya pryamoe zheleznodorozhnoe so
Answer
2000914
August 2022 | 0 Ответы
kto sharit v himii i smozhet reshit godovuyu kr za 10 klassdam 50 ballov 1 2 ball
Answer
2000914
August 2022 | 0 Ответы
najdite lishnee ponyatie v perechneobosnujte svoj vybor 1rynok zemlirynok cenny
Answer
2000914
August 2022 | 0 Ответы
najdite znachenie parametra a pri kotrom uravnenie z2 3 2iza1 i0 imeet ko
Answer
2000914
August 2022 | 0 Ответы
pomogite vychislite 1 i8
Answer
2000914
August 2022 | 0 Ответы
tex] +i)^-3...
Answer
2000914
August 2022 | 0 Ответы
tex i izobrazite ego na kompleksnj ploskosti
Answer
2000914
August 2022 | 0 Ответы
tex]+i)^-3...
Answer
2000914
August 2022 | 0 Ответы
x vucos3x
Answer
2000914
August 2022 | 0 Ответы
sushestvuet li treugolnik s vysotami 3 7 9
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 "Комплексные числа Решите уравнение: а)z^2+z+2=0 б) z^2-(3-2i)z+5-5i=0..."
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
Z^2 + z + 2 = 0D = 1 - 8 = - 7
z1 = ( - 1 + i √7)/2
z2 = ( - 1 - i √7)/2
z^2 - (3 - 2i)z + 5 - 5i = 0
D = (3 - 2i)^2 - 4*(5 - 5i) = 8i - 15
z1 = (3 - 2i + √(8i - 15))/2 = (3 - 2i + 1 + 4i)/2 = 2 + i
z2 = (3 - 2i - √(8i - 15))/2 = (3 - 2i - 1 - 4i)/2 = 1 - 3i
√(8i - 15) = ± (1 + 4i)
a = ± 1
b = ± 4