
Прогрессии
Authored by Olga Bereznyova
Mathematics
9th Grade
Used 5+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Среди данных последовательностей выберите арифметическую прогрессию
1;2;4;8;...
45; 40; 35; 27;...
7;10;12;14;...
0,1; 0,3; 0,5; 0,7;...
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Укажите среди данных последовательностей геометрическую прогрессию
6;18;54;162;...
1;2;3;5;...
3;8;13;18;...
21;19;17;15;...
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Бесконечную периодическую дробь 0,(41) представьте в виде обыкновенной
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Найдите разность арифметической прогрессии, если а10=13, а5=28
5
3
-3
-5
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Найдите знаменатель геометрической прогрессии , если b3=3, b5=12
-2
2
4
0,5
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Найдите шестой член арифметической прогрессии, если а1= - 3, d =1
3
2
-8
-3
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Найдите шестой член геометрической прогрессии, если b1= - 0,25, q = 2.
0,0625
-16
8
-8
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