
Ciąg Arytmetyczny - Quiz
Authored by Małgorzata Tynecka
Mathematics
11th Grade
Used 1+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wzór na 120 wyraz ciągu arytmetycznego ma postać
a= a + 120r
a= a - 120r
a= a + 119r
a= a - 119r
2.
MULTIPLE CHOICE QUESTION
30 sec • 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
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dany jest trzywyrazowy ciąg arytmetyczny. Stąd wynika, że:
4, 2x, x+6
x=4
x=3
x=2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oblicz różnicę ciągu arytmetycznego -8, -3, 2 .... i określ jego monotoniczność
r = 5, ciąg malejący
r = -5, ciąg rosnący
r = 5, ciąg rosnący
r = 3, ciąg rosnący
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ciąg arytmetyczny o różnicy r=2, to ciąg:
8, 6, 4, 2, 0
2, 4, 6, 8, 9
5, 7, 8, 9, 10, 11
5, 7, 9, 11, 13
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Brakujące wyrazy ciągu arytmetycznego -2, ..., -8, ..., -14
-4, -12
-4, -11
-5, -11
-5, -12
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
W ciągu arytmetycznym a3 =1 i a9 =19. Oblicz wyraz dwudziesty.
-62
20
52
55
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