Find n, if the ratio of the fifth term from the beginning to the fifth term from the end in - Maths - Binomial Theorem

Question

Find n , if the ratio of
the fifth term from the beginning to the fifth term from the end in
the expansion of

Gopal Mohanty · Accepted Answer

In the expansion,

, Fifth term from the beginning

Fifth term from the end

Therefore, it is evident that in the expansion of

, the fifth term from the beginning is

and the fifth term from the end is

It is given that the ratio of the fifth term from the beginning to the fifth term from the end is

Therefore, from (1) and (2), we obtain

Thus, the value of n is 10

Find n , if the ratio of the fifth term from the beginning to the fifth term from the end in the expansion of