9000136905 | math4u.vsb.cz

SubArea:

Level:

Project ID:

9000136905

Source Problem:

Accepted:

1

Clonable:

1

Easy:

1

For

n \in N

,

n \geq 2

, the difference

(\binom{n}{2}) - (\binom{n}{n - 2})

equals to:

0

(n + 2) (n + 1)

(\binom{n + 2}{n})

n^{2} - 1

(\binom{n}{n})