7P4

Solución

7 P 4

840

Pasos de solución

= \frac{n !}{( n - r ) !}

Sustituir

n = 7, r = 4

= \frac{7 !}{( 7 - 4 ) !}

\frac{7 !}{( 7 - 4 ) !} = 840

= 840

8 c 4

9 n C r 6

a r i t hm e t i c m e an 13, 9, 7, 8, 2, 4, 22, 12, 5, 0

15 C 8

11 c 4