Арифметическая прогрессия 9-класс
Quiz
•
Mathematics
•
9th Grade
•
Medium
Гульсара Рахатова
Used 4+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Является ли данная последовательность прогрессией: 2;5;8; 11;...
Нет, не является
Да, арифметическая прогрессия
Да, геометрическая прогрессия
2.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Выпишите первые пять членов арифметической прогрессии (аn), если а1=7, d=3?
7, 10, 12, 14
10, 13, 15, 17
7, 10, 13, 16
7, 21, 63, 189
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Найдите десятый член арифметической прогрессии аn=2n - 9
10
11
12
2
4.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Найдите значение суммы первых 20 элементов арифметической прогрессии : 1; 3,5; ....,
495
400
505
615
5.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Найдите а7 арифметической прогрессии, если а1=-3, d=2
8
10
9
15
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