Question

solve the following if ncn-3=10 then n=

Answer 1

ncn??.....
Are you asking about permutation and combination.
Then it is a wrong question.

Answer 2

Step-by-step explanation:

nCn-3=10 Substitute n=5 we get 5C5-3=10 5C2=10 5x4/2!=10 5x2=10 10=10 Therefore n=5