
Арифметична прогресія1
Authored by Тетяна Андрейко
Mathematics
9th Grade
Used 3+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Які з послідовностей є арифметичними прогресіями?
1) 2; 5; 8; 11...
2) 4; 5; 4; 5...
3) 0; 1; 5; 10...
4) 1; 3; 5; 7....
1) ; 2) ; 3)
1); 4);
3); 4);
1); 3); 4).
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Знайдіть шостий член арифметичної прогресії 3; 5; 7;.....
13
12
18
15
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Знайти перший член арифметичної прогресії (аn), якщо
а3=15, d=3.
21
9
18
12
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Між числами 3 і 7 вставте три числа таких, щоб вони разом з даними утворювали арифметичну прогресію.
4; 5; 6;
3.5; 4.5; 5.5;
6; 5; 4;
3; 5; 7.
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Формула n-го члена арифметичної прогресії має вид:a
an=a1+d(n−1)
an=a1+d(n+1)
an=a1−d(n−1)
an=a1−d(n+1)
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Знайдіть різницю арифметичної прогресії: 49; 43; 37; 31 ...
- 6
6
12
- 12
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Знайдіть різницю арифметичної прогресії: 6; 13; 20; 27 ...
6
8
7
- 7
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