Геометрическая прогрессия
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Ирина Чижова
Used 95+ times
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая из последовательностей чисел является геометрической прогрессией?
3; 9; ; 27;
- 1; 2; - 4; 8; - 16; 32
- 5; - 10; -15; - 20; - 25; - 30
3; 0; 0; 0; 0; 0
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Последовательность ( ) - геометрическая прогрессия. Найдите , если . .
3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Последовательность ;10; ; ; 80 - геометрическая прогрессия. Найдите .
55
- 20
40
20
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Найти сумму первых восьми членов геометрической прогрессии ( ): ; 1; ...
127,5
-127,5
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
В геометрической прогрессии ( ) дано ; . Найдите
20
- 0.05
- 20
0.05
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Найдите знаменатель геометрической прогрессии, если .
2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Найдите знаменатель геометрической прогрессии, если : ,
1.25
0.8
8.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Найдите первый член геометрической прогрессии ( ), если известно, что .
31.25
0.5
2
0.032
9.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Между числами -2 и -128 вставьте два таких числа, чтобы получилась геометрическая прогрессия.
8; 32
4; 64
-8; 32
-8; - 32
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