
Прогрессии
Quiz
•
Mathematics
•
12th Grade
•
Easy
Ирина Викентьева
Used 3+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В арифметической прогрессии а5=8,7 и а8=12,3. Найдите а1 и d
d=1,6 и а1=2,3
d=3,6 и а1=-5,7
d=1,2 и а1=3,9
d=1,4 и а1=3,1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В арифметической прогрессии а1= - 7,3 и
а2= - 6,4. На каком месте (укажите номер) находится число 26?
39
38
27
28
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В арифметической прогрессии а1 = 38,1
и а2 = 36,7. На каком месте (укажите номер) стоит первое отрицательное число? Найдите это число.
-0,5
-0,7
-1,1
-0,3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите сумму первых шестнадцати членов арифметической прогрессии, заданной формулой аn=6n+2.
864
848
792
716
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите знаменатель q.
9
3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В геометрической прогрессии
Найдите шестой член этой прогрессии
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В геометрической прогрессии а1=0,4 и а2= 1,2. Найдите сумму пяти первых членов этой прогрессии.
18,8
80,2
48,4
39,6
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