Aritmetinė progresija

Quiz
•
Mathematics
•
12th Grade
•
Medium
Edita Balinskiene
Used 27+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Duota, kad aritmetinės progresijos a10=8. Apskaičiuokite
a8+a9+a10+a11+a12.
80
50
40
8
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Apskaičiuokite
45+51+57+...+153
1800
1881
1880
1882
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Kiekvieną gimtadienį Justė gauna tiek gėlių, kiek jai sukanka metų. Tas gėles Justės mama išdžiovina ir palieka atminimui. Dabar Justė turi 120 gėlių. Kiek Justei metų?
13
16
14
15
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Raskite skaičių x, tenkinantį lygybę: 1 + 3 + 5 +...+ (2x-1) = 81
9
8
1
5
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Aritmetinė progresija turi 6 narius, jų suma lygi 297. Paskutinysis narys lygus 67. Kam lygus šios progresijos skirtumas .
3
7
14
30
32
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jei , tai lygus
2
1/2
18/13
5
7.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Kurios iš pateiktų sekų yra aritmetinė progresija?
4,7; -4,3; 3,9; -3,5;....
7/2; 7/5; 7/8; 7/11;.....
2/7; 5/7;8/7;11/7;...
-4,7;-4,3;-3,9;-3,5;...
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