Найдите координаты вектора , если ,
Контрольная работа № 6 по математике

Quiz
•
Mathematics
•
10th Grade
•
Hard
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
{6; 15; 77}
{5; -8; -18}
{1; -2; 4}
{-1; -2; -4}
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Найдите длину вектора если .
2
4
6
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Найдите длину вектора ,если
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Если , то вектор имеет координаты
{4; 3; 3}
{-4; 3; 0}
{-3; 2; 3}
{8; 1; -3}
5.
MULTIPLE SELECT QUESTION
15 mins • 1 pt
Даны 4 точки: А (2; 7; -3); B (1; 0; 3);С (-3; -4; 5); D (-2; 3; -1). Укажите среди векторов AB, BC, DC,AD и BD равные.
AB=BC
BC=AD
DC=AD
AB=DC
BD=AB
6.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
При каком значении n, данные векторы перпендикулярны: a (2; -1; 3); в (-3; 3; n)
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Найдите скалярное произведение векторов а(1, 2, 3) и в(4, -5, -1)
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