17.03. 8.raz Q1 Matematika tut

17.03. 8.raz Q1 Matematika tut

8th Grade

10 Qs

quiz-placeholder

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17.03. 8.raz Q1 Matematika tut

17.03. 8.raz Q1 Matematika tut

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

Amer Bralic

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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}, koliko elemenata sadrži A∪B?
2
4
3
5

Answer explanation

Unija A i B uključuje sve elemente iz oba skupa, ali bez ponavljanja, pa A∪B = {1,2,3,4}, što znači da ima 4 elementa.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako je A={2,4,6} i B={1,4,5,6}, šta je A∩B?
{2,4,5}
{4,6}
{4}

Answer explanation

Presjek A i B uključuje samo elemente koji su u oba skupa istovremeno, dakle A∩B = {4,6}.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako zapišemo interval (0,3], da li je 3 uključeno?
Ne
Da
Zavisi
Ne znam

Answer explanation

Broj 3 je uključen u interval (0,3] jer postoji uglasta zagrada sa desne strane.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Koji je to tip nejednakosti za x, ako je x u (−∞,5)?
x≤5
x<5
x≥5
x>5

Answer explanation

Interval (−∞,5) označava sve brojeve manje od 5, dakle x<5.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Šta je unija (1,3)∪(3,5)?
(1,3]
(1,5)
(1,3)
(3,5]

Answer explanation

Unija (1,3)∪(3,5) daje (1,5) jer se krajnja tačka 3 ne uključuje ni u jednom od dva intervala.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kako se označava prazan skup?
{}
()
Pišemo “/0”

Answer explanation

Prazan skup se označava simbolom ∅.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako zapišemo rješenje nejednakosti −2≤x≤1 na brojevnoj pravoj, kakve zagrade koristimo?
Okrugle
Uglaste
Kvadratne
Različite

Answer explanation

Nejednakost −2≤x≤1 znači da koristimo uglaste zagrade jer su krajnje tačke uključene.

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