Сумма арифметической прогрессии
9th Grade
•5 Qs
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Сумма арифметической прогрессии
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Liliya Skripko
Used 3+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите формулу n-го члена арифметической прогрессии
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Выберите формулу суммы n первых членов арифметической прогрессии
3.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Найдите сумму первых шести членов арифметической прогрессии, если а1=3, d=5
4.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
a1=6, d=3, n=8. Найдите сумму первых n членов арифметической прогрессии
5.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Известно a1=46,d= - 2,an=32. Найдите n и Sn
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