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Test combinatoricăXD

Authored by Elena-Ioana Kanyó

Mathematics

10th Grade

Used 12+ times

Test combinatoricăXD
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6 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 C20210+C20211=C_{2021}^0+C_{2021}^1=  

2021

0

1

2022

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

0!+2!+4!+5!=

11

146

147

12

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 2022!2020!\frac{\text{2022!}}{\text{2020!}}  adus la forma simplă este egal cu :

2022

4042

4084440

4086462

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie ecuația  2Cn0+2An1=1002C_n^0+2A_n^1=100  . Numărul n este:

100

50

nu există număr natural în condițiile date

49

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Soluția ecuației  Cn2=28C_n^2=28  este:

21

28

8

7

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Relația  k=04C4k=24\sum_{k=0}^4C_4^k=2^4  este adevărată sau falsă?

adevărat

fals

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