
successioni
Authored by Chiara Bravi
Mathematics
11th Grade
Used 8+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In una progressione geometrica di ragione 2 il termine a1 è uguale a 8; il termine a5 è uguale a
26
27
28
29
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di una progressione geometrica sono noti il termine a1=1 e a5=16; l'espressione P6 è
230
215
26
non si può calcolare con questi dati
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di una progressione aritmetica di ragione 2 si sa che a10=21; si può dire che:
a1=4
a15=33
S10=120
S7=61
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Trova il primo termine della seguente progressione aritmetica:
a14=68
d=3
14
20
26
29
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quale delle seguenti successioni è una progressione aritmetica la cui ragione è uguale a -5?
-5, 25, -125, 625, ...
-5, -10. -20, -40, ...
-5, 0, 5, 10, ...
1,-4,-9, -14,...
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è il decimo termine della progressione aritmetica in cui a1= - 2 e la ragione è d = - 2?
-18
-20
-22
I dati non sono sufficienti per rispondere
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è l'ottavo termine della progressione geometrica in cui a1= - 0,5 e la ragione è - 2?
32
64
128
I dati non sono sufficienti per rispondere
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