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Kombinatorika

Authored by Inese Jakubova

Mathematics

11th Grade

Used 42+ times

Kombinatorika
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Lai aprēķinātu kombinācijas lieto formulu

 Cnk=n!(nk)!C_n^k=\frac{n!}{\left(n-k\right)!}  

Patiess

Aplams

2.

FILL IN THE BLANK QUESTION

45 sec • 1 pt

5! =

3.

FILL IN THE BLANK QUESTION

45 sec • 1 pt

 10!8!=\frac{10!}{8!}=  

4.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

 A92=A_9^2=  

5.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 15!13!=....×.....\frac{15!}{13!}=....\times.....  

13

14

15

16

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Durvju kods sastāv no 4 dažādiem burtiem (var izmantot 22 burtus). Cik dažādus kodus var izveidot?

19×20×21×2219\times20\times21\times22

18×19×20×21×2218\times19\times20\times21\times22

19×5×21×2219\times5\times21\times22

22!22!

7.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Cik dažādos variantos no 11 komandas dalībniekiem var izvēlēties kapteini un viņa vietnieku?

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