скалярній добуток векторів. кут між векторами
Quiz
•
Mathematics
•
9th Grade
•
Easy
Інна Гніденко
Used 1+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Обчисліть скалярний добуток векторів а̅(2; -6) та в̅ (3; 4)
30
18
-18
-30
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Довжина вектора а дорівнює 2, довжина вектора в дорівнює 1, кут між ними 600. Знайти їх скалярний добуток
-1
1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Знайти кут між векторами а і в, якщо а⋅в=4, ∣а∣=2, ∣в∣=4
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Дано вектори ̅а(3;-2) і в̅ (х;4). При якому х а̅⋅в̅=13?
-7
7
6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Дано вектори а̅(5;2) і в̅(-4;х). При якому значенні х вектори а̅ і в̅ перпендикулярні?
2,5
10
-10
6
6.
FILL IN THE BLANK QUESTION
2 mins • 2 pts
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
-5
5
20
8.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Найди скалярное произведение векторов:
92
-4
-92
(1, -5)
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