17.03. 8.raz Q2 Matematika kviz

17.03. 8.raz Q2 Matematika kviz

8th Grade

10 Qs

quiz-placeholder

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17.03. 8.raz Q2 Matematika kviz

17.03. 8.raz Q2 Matematika kviz

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Easy

Created by

Amer Bralic

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako je A={1,2,3} i B={3,4,5}, onda je A∪B:

{1,2,3,4,5}
{3}
{1,2,4,5}

Answer explanation

Unija A i B uključuje sve elemente iz oba skupa, bez ponavljanja, dakle A∪B = {1,2,3,4,5}.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako je A={2,5} i B={1,2}, onda je A∩B:

{1,2,5}
{2}
{2,5}

Answer explanation

Presjek A i B uključuje samo elemente koji su u oba skupa istovremeno, dakle A∩B = {2}.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Na interval [0,5) spada:

5
4
-1
5.1

Answer explanation

Na interval [0,5) spada broj 4, jer 5 nije uključeno.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako −∞<x≤2, u intervalnoj notaciji pišemo:

(−∞,2]
(−∞,2)
(2,∞)
[2,∞)

Answer explanation

Interval (−∞,2] označava sve brojeve manje ili jednake od 2.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Presjek intervala [1,3] i (3,4] je:

{3}
[3,3]
(3,3)

Answer explanation

Presjek intervala [1,3] i (3,4] je prazan skup, jer broj 3 nije zajednički.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako je x iz intervala (−∞,3), onda vrijedi nejednakost x<_____.

2
3
1
4

Answer explanation

Interval (−∞,3) označava sve brojeve manje od 3.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako je A∪B={1,2,3} i A={1}, tada je B _____?

{1}
{2,3}
{3}
{4}

Answer explanation

Ako je A∪B={1,2,3} i A={1}, tada B mora sadržavati {2,3}.

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