Question

if 22cr is the largest binomial coeffiecient in the expansion of (1+x)^22 then find the value of 13cr​

Answer 1

• In the expansion of (1+x)^22 the largest binomial coefficient is the middle term that is 22C22/2= 22C11

By given data 22Cr = 22C11

therefore r=11

13Cr = 13C11

(13C11 is equal to 13C2)

13C2 = 13(12)/2

13×6 =78

Answer 2

Answer:

the answer is 78

Step-by-step explanation:

r is 11

were 13C11 is equal to 13C2

13*6=78