
Grade 11Algebra
The number of ways in which we can n+p things into two groups is given by:-
(n+p)!/n!p!
if n=p then in books it is written number of ways become
(2n)!/n!n!2!
why additional 2! can someone explain, PLZ?
The number of ways in which we can n+p things into two groups is given by:-
(n+p)!/n!p!
if n=p then in books it is written number of ways become
(2n)!/n!n!2!
why additional 2! can someone explain, PLZ?




