Solve this: Q28 The number of values in set of values of r for which 23Cr + 3 - Maths - Binomial Theorem

Question

Solve this:

Q28 The number of values in set of values of
r for which 23 C r   +   3
  23 C r + 1 +   23 C r + 2   ≥   25 C 15
  is

Brijendra Pal · Accepted Answer

Hi, insted of 3 it must be 2 at the place of multiple of middle term so

Here we are using formula

Solve this: Q28. The number of values in set of values of r for which 23 C r + 3 . 23 C r + 1 + 23 C r + 2 ≥ 25 C 15 is