Combination Calculation

MathematicsCombinatoricsEasyYKS

Published:

$$\binom{6}{2} = ?$$

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1
Step 1

Merhaba Zeynep, bu kombinasyon sorusunu birlikte çözelim.

Kombinasyon Hesabı

2
Step 2

Görüntüdeki ifade 6'nın 2'li kombinasyonudur. Bunu şu şekilde yazarız.

$$ \binom{6}{2}$$
3
Step 3

Kombinasyon formülümüz n'in r'li kombinasyonu için n faktöriyel bölü r faktöriyel çarpı (n eksi r) faktöriyel şeklindedir.

$$ \binom{n}{r} = \frac{n!}{r!(n-r)!}$$
4
Step 4

Şimdi değerleri yerine koyalım. n yerine 6, r yerine 2 yazıyoruz.

$$ \binom{6}{2} = \frac{6!}{2!(6-2)!}$$
5
Step 5

Paydadaki parantez içini düzenleyelim, 6 eksi 2 eşittir 4 eder.

$$ \binom{6}{2} = \frac{6!}{2! \cdot 4!}$$

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About This Question

Subject
Mathematics
Topic
Combinatorics
Difficulty
Easy
Exam
YKS

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