ciąg arytmetyczny
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Medium
Marta Cybula
Used 147+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ciąg arytmetyczny dany jest wzorem: an = 2n - 1. Różnica tego ciągu wynosi:
-1
1
2
3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Liczby 7, a, 49 w podanej kolejności tworzą ciąg arytmetyczny.
Wtedy a jest równe:
14
21
28
42
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Wzór na 120 wyraz ciągu arytmetycznego ma postać
a120 = a1 + 120r
a120 = a1 - 120r
a120 = a1 + 119r
a120 = a1 - 119r
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Liczby 2,−1,−4 są trzema początkowymi wyrazami ciągu arytmetycznego określonego dla liczb naturalnych n≥1.
Wzór ogólny tego ciągu ma postać:
an = −3n+5
an = n−3
an =−n+3
an = 3n−5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dany jest trzywyrazowy ciąg arytmetyczny . Stąd wynika, że:
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dany jest ciąg arytmetyczny, o którym wiadomo, że: . Wzór ogólny tego ciągu ma postać:
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oblicz różnicę ciągu arytmetycznego 3, 3, 3, 3 .... i określ jego monotoniczność
r = -1, ciąg malejący
r = 0, ciąg stały
r = 1, ciąg rosnący
r = 1, ciąg stały
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