​​If nC12 = nC13 then find the value of 25Cn.

n=a+b; n=12+13
  • -3
if u knw thn y do u ask :D :P
  • -6
nc12=nc13
n!/(n-12 )13!=n!/(n-13)13!
1/n-12=1/13
n-13=12
n=25
25cn=?
25c25=1
  • 3
Hdjs

  • -1
What are you looking for?