Сумма всех ребер тетраэдра 54 см. Вычислите площадь полной поверхности тетраэдра.

Математика 100-150

Quiz
•
Mathematics
•
11th Grade
•
Easy
Karina Dobrokhotova
Used 107+ times
FREE Resource
50 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
81√3см2
12√3см2
81√5см2
13√37см2
12√5см2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите область определения функции f(x)=10x2-5х-3
(0; ∞)
(-∞; +∞)
(-∞; 0)
(-3; 3)
(0; 10)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая из функций является четной?
4х4+х2
4х4+х
4х4-х
х4-2х
х4+х
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Наименьший положительный период функции y=cosx равен:
π
3π
4π
2π
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите АВ
5
10
1,25
5,5
1,2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
АС:СВ=4:3, АА1∥СС1∥ВВ1, А1С1:С1В1=?
2:3
3:2
1:1
4:3
2:1,5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите одну из первообразных для функции f на R, если f(x)=5x4
5х5
х5
x4
x5 /5
4x5 /5
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