Home
О нас
Products
Services
Регистрация
Войти
Поиск
Callie
@Callie
August 2021
1
5
Report
ДАЮ МНОГО БАЛЛОВ! Решите пожалуйста первых 3 задачи, и, если сможете последнюю.
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
sedinalana
Verified answer
1
a*b=x1*x2+y1*y2=-2*4-3*2=-8-6=-14
2
|a+b|=√(a+b)²=√(a²+2abcos60+b²)=√(1+2*1*1*1/2+1)=√3
3
cos(a∧b)=(x1x2+y1y2)/(√(x1²+y1²)*√(x2²+y2²)
-1/2a{-1/2x1;-1/2y1} -b{-x2;-y2}
cos((-1/2a)∧(-b))=(1/2x1x2+1/2y1y2)/
(√1/4(x1²+y1²)*√(x2²+y2²)=
=1/2
(x1x2+y1y2):1/2(√(x1²+y1²)*√(x2²+y2²)=
=(x1x2+y1y2)/(√(x1²+y1²)*√(x2²+y2²)=cos(a
∧b)=-1/2
4
(λa+b)_|_b
λa+b{-λ+3;-4λ+2}
(λa+b)*b=(-λ+3)*3-2*(-4λ-2)=0
-3λ+9+8λ+4=0
5λ=-13
λ=-2,6
1 votes
Thanks 2
More Questions From This User
See All
Callie
August 2022 | 0 Ответы
pomogite pozhalujsta kakoe kolichestvo teploty neobhodimo chtoby polnostyu ispari
Answer
Callie
August 2022 | 0 Ответы
pomogite pozhalujsta rasschitajte energiyu neobhodimuyu dlya polucheniya 5 kg vody
Answer
Callie
August 2022 | 0 Ответы
reshite neravenstvo4905ed7d834e940ee2db73d86fda1c18 10343
Answer
Callie
August 2022 | 0 Ответы
reshite pozhalujsta uravneniya dolzhno vyjti2341234
Answer
Callie
August 2022 | 0 Ответы
pomogite reshit legenkoe uravnenie
Answer
Callie
August 2022 | 0 Ответы
pomogite pozhalujsta reshit zadachi dayu 30 ballov 1passazhir preodolel 170 km
Answer
Callie
August 2022 | 0 Ответы
pomogite pozhalujsta925ba58bb2a6a082dc333d06782cb87f 41261
Answer
Callie
August 2022 | 0 Ответы
sos pomogite pozhalujsta najdite znachenie vyrazheniya
Answer
Callie
August 2022 | 0 Ответы
poschitajte primerchik najdite znachenie vyrazheniya dolzhno vyjti 05 no u menya p
Answer
Callie
July 2022 | 0 Ответы
reshite uravnenie pozhalujsta7d644554fbab4c62175c5431eb53d972 75683
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 "ДАЮ МНОГО БАЛЛОВ! Решите пожалуйста первых 3 задачи, и, если сможете последнюю..."
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
1a*b=x1*x2+y1*y2=-2*4-3*2=-8-6=-14
2
|a+b|=√(a+b)²=√(a²+2abcos60+b²)=√(1+2*1*1*1/2+1)=√3
3
cos(a∧b)=(x1x2+y1y2)/(√(x1²+y1²)*√(x2²+y2²)
-1/2a{-1/2x1;-1/2y1} -b{-x2;-y2}
cos((-1/2a)∧(-b))=(1/2x1x2+1/2y1y2)/(√1/4(x1²+y1²)*√(x2²+y2²)=
=1/2(x1x2+y1y2):1/2(√(x1²+y1²)*√(x2²+y2²)=
=(x1x2+y1y2)/(√(x1²+y1²)*√(x2²+y2²)=cos(a∧b)=-1/2
4
(λa+b)_|_b
λa+b{-λ+3;-4λ+2}
(λa+b)*b=(-λ+3)*3-2*(-4λ-2)=0
-3λ+9+8λ+4=0
5λ=-13
λ=-2,6