
Прогресії
Authored by Larisa Olenych
Mathematics
8th Grade
Used 1+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1; 11; 293
1; - 11; - 293
- 1; - 11; - 293
- 1; - 11; 293
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Знайди чотири перших члени арифметичної прогресії (аn ), якщо а1 = 1,5, d = - 0,4
1,5; -1,1; 0,7; -0,3
-1,5; 1,1; -0,7; 0,3
-1,5; -1,1; -0,7; -0,3
1,5; 1,1; 0,7; 0,3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Знайди різницю і сто п'ятдесят перший член арифметичної прогресії 1,8; 2,2; 2,6...
d=0,4;
а151 = 61,8
d=2,8;
а151 = 61,8
d=0,4;
а151 = 62
d=2;
а151 = 61,8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Знайди перший член арифметичної прогресії (уn ), якщо у12 = - 23, d = - 2
2
1
- 1
- 2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Знайди суму сімнадцяти перших членів арифметичної прогресії, якщо а17 = 84, d = 6,5.
943
329
850
544
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Знайди кількість членів геометричної прогресії, якщо
b1 = 6; q = 4; Sn = 2046
n = 7
n = 9
n = 5
n = 3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1190
1090
1119
1009
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