
Didaktický test z postupností
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
Katarína Bolceková
Used 5+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Je daná postupnosť {(-1)n+1+1}∞n=1
Súčin jej prvého, pätnásteho a dvadsiateho člena je
-1
0
1
4
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Postupnosť je daná vymenovaním prvkov:{-2, 0, 2, 4, 6,...} .
Určte vzorec pre n- tý člen.
an = 2(n - 1)
an = n - 3
an = 2(n - 2)
an = - 2n
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Na obrázku je časť grafu postupnosti. Pre jej n-tý člen platí:
an = |n - 5|
an = n + 3
an = 5 - n
an = |2n - 6|
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Postupnosť {an}∞n=1 je daná rekurentne: a1 = 1, an+1 = 2an pre n ≥ 1. Všeobecným vyjadrením n-tého člena tejto postupnosti je
an = 2n - 1
an = 2n
an = 2n - 1
an = 2n - 1
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Rad čísel: 1, 1, 2, 3, 5, 8, ... je známa Fibonacciho postupnosť. Rekurentným určením tejto postupnosti je
a1 = 1, an+1 = an + an-1
a1 = 1, an+1 = an + an-1
a1 = 1, a2 = 1, an = an-2 + an-1
a1 = 1, an = an+1 + an-1
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
je rastúca.
je klesajúca.
je neklesajúca.
nie je monotónn
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Postupnosť {an}∞n=1 , v ktorej pre všetky n∈ N platí an+1-an≥ 0 je
je rastúca.
je klesajúca.
je neklesajúca.
nie je monotónna.
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