Найти сумму, разность, скалярное произведение векторов а(-6;4;-2) и б(-2; 0; 12) - №29296995

Найти сумму, разность, скалярное произведение векторов а(-6;4;-2) и б(-2; 0; 12)
- Предмет:
  Геометрия
- Автор:
  kathrynpeters
- 6 лет назад

Ответы 1

a+b = (-8,4,10)a-b = (-4,4,-14)a*b = -6*(-2) + 4*0 + (-2)*12 = 12-24= -12
- Автор:
  miguelhenderson
- 6 лет назад
- 0
Добавить свой ответ

Еще вопросы

Fill in the correct word derived from the word in brackets.

1 Personally I don’t like piercings and tattoos and I think they are very .............................
(ATTRACTIVE)
2 Teenagers should wait until they reach ............................. before they think about plastic
surgery. (ADULT)
3 Problems during adolescence can cause feelings of ............................. in young people.
(SECURITY)
4 Not even supermodels have a ............................. complexion. (FLAW)
5 My dog looks scary, but really he is ............................. and would never hurt anyone.
(HARM)
6 You should be more ............................. when you speak to him and don’t let him walk all
over you. (ASSERT)
6 A group of people were ............................. when it came to voting on the location for the
concert. (NUMBER)
7 He’s not known for being ............................., but I don’t think he’s lying this time. (TRUTH)
8 I believe that chatterboxes have a ............................. fear of being alone. (CONSCIOUS)
9 The painkillers helped to ease her ............................. . (COMFORT)
10 Psychologists believe that it is important for parents to show ............................. to their
children. (AFFECT)
11 She does not have a ............................. body image. She thinks she looks like the models
in fashion magazines. (REAL)
12 This face cream is amazing. It makes spots and wrinkles ............................. completely!
(APPEAR)
13 Although he was on a diet, the ............................. of chocolate was too great and he had a
piece of cake. (TEMPT)
- Предмет:
  Английский язык
- Автор:
  liahx3x
- 6 лет назад
- Ответов:
  
  2
- Смотреть
Решить неравенство 4^(0,5x^2-3)> 8
- Предмет:
  Алгебра
- Автор:
  luluppub
- 6 лет назад
- Ответов:
  
  2
- Смотреть
Решите неравенство.
㏒₂([tex] \frac{3}{x} [/tex]+2)-㏒₂(x+3)≤㏒₂([tex] \frac{x+4}{x^{2}} [/tex])
- Предмет:
  Математика
- Автор:
  chloefs8s
- 6 лет назад
- Ответов:
  
  9
- Смотреть
Помогите.
Морфологиялық талдау. Жақсы қауымның жаманы болғанша, жаман қауымның жақсысы бол.
- Предмет:
  Қазақ тiлi
- Автор:
  alyssaaisa
- 6 лет назад
- Ответов:
  
  1
- Смотреть

How much to ban the user?

1 hour 1 day 100 years